E. S. Hall, A. T. Folger, and E. A. Kelly, Evaluation of gestational age estimate method on the calculation of preterm birth rates, Matern Child Health J, 2014.

H. Yang, M. S. Kramer, and R. W. Platt, How does early ultrasound scan estimation of gestational age lead to higher rates of preterm birth?, Am J Obstet Gynecol, vol.186, pp.433-437, 2002.

C. Ioannou, K. Talbot, and E. Ohuma, Systematic review of methodology used in ultrasound studies aimed at creating charts of fetal size, BJOG, vol.119, pp.1425-1439, 2012.

A. Jukic, The impact of systematic errors on gestational age estimation, BJOG, 2014.

, Euro-Peristat project with SCPE and EUROCAT, European Perinatal Health Report. The health and care of pregnant women and babies in Europe in 2010, 2013.

, Accessed 16, 2016.

J. E. Lawn, H. Blencowe, S. Oza, D. You, A. C. Lee et al., Every newborn: progress, priorities, and potential beyond survival, Lancet, vol.384, pp.189-205, 2014.

B. Larroque, P. Y. Ancel, S. Marret, L. Marchand, M. Andre et al., Neurodevelopmental disabilities and special care of 5-year-old children born before 33 weeks of gestation (the EPIPAGE study): a longitudinal cohort study, Lancet, vol.371, pp.813-833, 2008.

J. Zeitlin, E. S. Draper, L. Kollee, D. Milligan, K. Boerch et al., Differences in rates and short-term outcome of live births before 32 weeks of gestation in Europe in 2003: results from the MOSAIC cohort, Pediatrics, vol.121, pp.936-980, 2008.

P. Y. Ancel, F. Goffinet, . Epipage-2-writing, . Group, P. Kuhn et al., Survival and morbidity of preterm children born at 22 through 34 weeks' gestation in France in 2011: results of the EPIPAGE-2 cohort study, JAMA Pediatr, vol.169, pp.230-238, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01258705

S. Saigal and L. W. Doyle, An overview of mortality and sequelae of preterm birth from infancy to adulthood, Lancet, vol.371, pp.261-270, 2008.

H. H. Chang, J. Larson, H. Blencowe, C. Y. Spong, C. P. Howson et al., Preventing preterm births: analysis of trends and potential reductions with interventions in 39 countries with very high human development index, Lancet, vol.381, pp.223-257, 2013.

H. Blencowe, S. Cousens, M. Z. Oestergaard, D. Chou, A. B. Moller et al., National, regional, and worldwide estimates of preterm birth rates in the year 2010 with time trends since 1990 for selected countries: a systematic analysis and implications, Lancet, vol.379, pp.2162-72, 2012.

J. Zeitlin, K. Szamotulska, N. Drewniak, A. D. Mohangoo, J. Chalmers et al., Preterm birth time trends in Europe: a study of 19 countries, BJOG, vol.120, pp.1356-65, 2013.

A. D. Mohangoo, S. E. Buitendijk, K. Szamotulska, J. Chalmers, L. M. Irgens et al., Gestational age patterns of fetal and neonatal mortality in Europe: results from the Euro-Peristat project, PLoS One, vol.6, p.24727, 2011.

M. S. Kramer, R. W. Platt, H. Yang, B. Haglund, S. Cnattingius et al., Registration artifacts in international comparisons of infant mortality, Paediatr Perinat Epidemiol, vol.16, pp.16-22, 2002.

E. L. Duryea, D. D. Mcintire, and K. J. Leveno, The rate of preterm birth in the United States is affected by the method of gestational age assignment, Am J Obstet Gynecol, vol.213, pp.231-232, 2015.

W. C. Graafmans, J. H. Richardus, A. Macfarlane, M. Rebagliato, B. Blondel et al., Comparability of published perinatal mortality rates in Western Europe: the quantitative impact of differences in gestational age and birthweight criteria, BJOG, vol.108, pp.1237-1282, 2001.

A. D. Mohangoo, B. Blondel, M. Gissler, P. Velebil, A. Macfarlane et al., International comparisons of fetal and neonatal mortality rates in high-income countries: should exclusion thresholds be based on birth weight or gestational age?, PLoS One, vol.8, p.64869, 2013.

M. Gissler, A. D. Mohangoo, B. Blondel, J. Chalmers, A. Macfarlane et al., Perinatal health monitoring in Europe: results from the EURO-PERISTAT project, Inform Health Soc Care, vol.35, pp.64-79, 2010.

L. Smith, E. S. Draper, B. N. Manktelow, C. Pritchard, and D. J. Field, Comparing regional infant death rates: the influence of preterm births <24 weeks of gestation, Arch Dis Child Fetal Neonatal Ed, vol.98, pp.103-110, 2013.

, World Health Organization. ICD-10: International Statistical Classification of Diseases and Related Health Problems -Instruction Manual. 2. Geneva: WHO, 2010.

S. K. Schmitt, L. Sneed, and C. S. Phibbs, Costs of newborn care in California: a population-based study, Pediatrics, vol.117, pp.154-60, 2006.

L. J. Mangham, S. Petrou, L. W. Doyle, E. S. Draper, and N. Marlow, The cost of preterm birth throughout childhood in England and Wales, Pediatrics, vol.123, pp.312-339, 2009.

J. Zeitlin, K. Wildman, G. Breart, S. Alexander, H. Barros et al., Selecting an indicator set for monitoring and evaluating perinatal health in Europe: criteria, methods and results from the PERISTAT project, Eur J Obstet Gynecol Reprod Biol, vol.111, issue.1, pp.5-14, 2003.

A. Heino, M. Gissler, A. D. Hindori-mohangoo, B. Blondel, K. Klungsoyr et al., Variations in multiple birth rates and impact on perinatal outcomes in Europe, PLoS One, vol.11, p.149252, 2016.

M. L. Wier, M. Pearl, and M. Kharrazi, Gestational age estimation on United States livebirth certificates: a historical overview, Paediatr Perinat Epidemiol, vol.21, issue.2, pp.4-12, 2007.

U. S. , Division of Vital Statistics. User guide to the 2010 natality public use file, Centers for Disease Control and Prevention

. Accessed, , 2015.

U. S. , Division of Vital Statistics. User guide to the 2010 fetal death file, Centers for Disease Control and Prevention

. Accessed, , 2015.

B. Blondel, I. Morin, R. W. Platt, M. S. Kramer, R. Usher et al., Algorithms for combining menstrual and ultrasound estimates of gestational age: consequences for rates of preterm and postterm birth, BJOG, vol.109, pp.718-738, 2002.

W. M. Callaghan and P. M. Dietz, Differences in birth weight for gestational age distributions according to the measures used to assign gestational age, Am J Epidemiol, vol.171, pp.826-862, 2010.

M. S. Pignotti and G. Donzelli, Perinatal care at the threshold of viability: an international comparison of practical guidelines for the treatment of extremely preterm births, Pediatrics, vol.121, pp.193-201, 2008.

P. I. Macfarlane, S. Wood, and J. Bennett, Non-viable delivery at 20-23 weeks gestation: observations and signs of life after birth, Arch Dis Child Fetal Neonatal Ed, vol.88, pp.199-202, 2003.

T. F. Mcelrath, E. R. Norwitz, N. Nour, and J. N. Robinson, Contemporary trends in the management of delivery at 23 weeks' gestation, Am J Perinatol, vol.19, pp.9-15, 2002.

E. Garne, B. Khoshnood, M. Loane, P. Boyd, H. Dolk et al., Termination of pregnancy for fetal anomaly after 23 weeks of gestation: a European register-based study, BJOG, vol.117, pp.660-666, 2010.

K. M. Van-der-pal-de-bruin, W. Graafmans, M. C. Biermans, J. H. Richardus, A. G. Zijlstra et al., The influence of prenatal screening and termination of pregnancy on perinatal mortality rates, Prenat Diagn, vol.22, pp.966-72, 2002.

E. Papiernik, J. Zeitlin, D. Delmas, E. S. Draper, J. Gadzinowski et al., Termination of pregnancy among very preterm births and its impact on very preterm mortality: results from ten European population-based cohorts in the MOSAIC study, BJOG, vol.115, pp.361-369, 2008.

E. S. Draper, Z. Alfirevic, F. Stacey, E. Hennessy, and K. Costeloe, EPICure Study Group. An investigation into the reporting and management of late terminations of pregnancy (between 22 + 0 and 26 + 6 weeks of gestation) within NHS Hospitals, BJOG, vol.119, pp.710-715, 2012.

M. F. Macdorman, T. J. Matthews, A. D. Mohangoo, and J. Zeitlin, International comparisons of infant mortality and related factors: United States and Europe, Nat Vital Stat Rep, vol.63, pp.1-6, 2010.

P. Deb-rinker, J. A. Leon, N. L. Gilbert, J. Rouleau, A. M. Andersen et al., Differences in perinatal and infant mortality in high-income countries: artifacts of birth registration or evidence of true differences?, BMC Pediatr, vol.15, p.112, 2015.

G. R. Alexander, J. H. Himes, R. B. Kaufman, J. Mor, and M. Kogan, A United States national reference for fetal growth, Obstet Gynecol, vol.87, pp.163-171, 1996.

M. Delnord, B. Blondel, and J. Zeitlin, What contributes to disparities in the preterm birth rate in European countries?, Curr Opin Obstet Gynecol, vol.27, pp.133-175, 2015.

J. V. Garn, T. Nagulesapillai, A. Metcalfe, S. Tough, and M. R. Kramer, International comparison of common risk factors of preterm birth between the U.S. and Canada, using PRAMS and MES, 2005.

, Matern Child Health J, vol.19, pp.811-819, 2015.

J. Zeitlin, B. Blondel, and C. V. Ananth, Characteristics of childbearing women, obstetrical interventions and preterm delivery: a comparison of the US and France, Matern Child Health J, vol.19, pp.1107-1121, 2015.

E. Papiernik, J. Zeitlin, D. Delmas, B. Blondel, W. Kunzel et al., Differences in outcome between twins and singletons born very preterm: results from a population-based European cohort, Hum Reprod, vol.25, pp.1035-1078, 2010.

D. Field, B. Bajuk, B. N. Manktelow, T. Vincent, J. Dorling et al., Geographically based investigation of the influence of very-preterm births on routine mortality statistics from the UK and Australia, Arch Dis Child Fetal Neonatal Ed, vol.93, pp.212-218, 2008.

D. Field, E. S. Draper, A. Fenton, E. Papiernik, J. Zeitlin et al., Rates of very preterm birth in Europe and neonatal mortality rates, Arch Dis Child Fetal Neonatal Ed, vol.94, pp.253-259, 2009.

J. D. Iams, R. Romero, J. F. Culhane, and R. L. Goldenberg, Primary, secondary, and tertiary interventions to reduce the morbidity and mortality of preterm birth, Lancet, vol.371, pp.164-75, 2008.

R. E. Behrman and A. S. Butler, Preterm Birth: Causes, Consequences, and Prevention. The National Academies Collection: Reports funded by National Institutes of Health, 2007.

L. Mikkelsen, D. E. Phillips, C. Abouzahr, P. W. Setel, D. De-savigny et al., A global assessment of civil registration and vital statistics systems: monitoring data quality and progress, Lancet, vol.386, pp.1395-406, 2015.

D. E. Phillips, C. Abouzahr, A. D. Lopez, L. Mikkelsen, D. De-savigny et al., Are well functioning civil registration and vital statistics systems associated with better health outcomes?, Lancet, vol.386, pp.1386-94, 2015.

. Institut-für-hebammen and . Zürcher,

J. Chalmers, Kirsten Monteath

M. Climson,

L. Marr, Healthcare Improvement Scotland

G. Thomas and R. Osborne, Health Statistics and Analysis Unit

R. Brown, NHS Wales Informatics Service

D. Sweet and J. Evans, Office for National Statistics

T. Falconer and K. Mcconnell, Northern Ireland Maternal and Child Health, Public Health Agency (now retired

N. Mccomb, Human Fertilisation and Embryology Authority

M. Delnord, A. D. Hindori-mohangoo, L. K. Smith, K. Szamotulska, J. L. Richards et al., Variations in very preterm birth rates in 30 highincome countries: are valid international comparisons possible using routine data?, BJOG, vol.124, pp.785-94, 2017.

B. Filipovi-c-gr-ci-c and U. Rodin, Re: Variations in very preterm birth rates in 30 high-income countries: are valid international comparisons possible using routine data?, BJOG, vol.124, pp.1623-1647, 2017.

M. Bonet, M. Cuttini, A. Piedvache, E. Boyle, P. Jarreau et al., Changes in management policies for extremely preterm births and neonatal outcomes from 2003 to 2012: two population-based studies in 10 European regions, BJOG, vol.124, pp.1623-1647, 2017.

U. Guillen, E. M. Weiss, D. Munson, P. Maton, A. Jefferies et al., Guidelines for the management of extremely premature deliveries: a systematic review, Pediatrics, vol.136, pp.343-50, 2015.

S. Saigal and L. W. Doyle, An overview of mortality and sequelae of preterm birth from infancy to adulthood, Eur J Obstetrics Gynecol Reprod Biol, vol.371, pp.5-14, 2003.

J. Zeitlin, L. Mortensen, and M. Cuttini, Declines in stillbirth and neonatal mortality rates in Europe between 2004 and 2010: results from the Euro-Peristat project, J Epidemiol Commun Health, vol.70, pp.609-624, 2016.

A. Heino, M. Gissler, and A. D. Hindori-mohangoo, Variations in multiple birth rates and impact on perinatal outcomes in Europe, PloS one, vol.11, p.149252, 2016.

M. L. Wier, M. Pearl, and M. Kharrazi, Gestational age estimation on United States livebirth certificates: a historical overview, Paediatric Perinatal Epidemiol, vol.21, pp.4-12, 2007.

J. Zeitlin, B. Blondel, and S. Alexander, Variation in rates of postterm birth in Europe: reality or artefact?, BJOG Int J Obstetrics Gynaecol, vol.114, pp.1097-103, 2007.

M. Delnord, A. D. Hindori-mohangoo, and L. K. Smith, Variations in very preterm birth rates in 30 high-income countries: are valid international comparisons possible using routine data?, BJOG Int J Obstetrics Gynaecol, vol.124, pp.785-794, 2016.

S. Juarez, A. Ortiz, T. , R. , D. Bolumar et al., The quality of vital statistics for studying perinatal health: the Spanish case, Paediatric Perinatal Epidemiol, vol.26, pp.310-315, 2012.

D. J. Lorenz, S. Datta, and S. J. Harkema, Marginal association measures for clustered data, Stat Med, vol.30, pp.3181-91, 2011.

B. Blondel, I. Morin, and R. W. Platt, Algorithms for combining menstrual and ultrasound estimates of gestational age: consequences for rates of preterm and postterm birth, BJOG Int J Obstetrics Gynaecol, vol.109, pp.718-738, 2002.

A. J. Macfarlane, B. Blondel, and A. D. Mohangoo, Wide differences in mode of delivery within Europe: risk-stratified analyses of aggregated routine data from the Euro-Peristat study, BJOG Int J Obstetrics Gynaecol, vol.123, pp.559-68, 2016.

J. Zeitlin, A. D. Mohangoo, and M. Delnord, The second European Perinatal Health Report: documenting changes over 6 years in the health of mothers and babies in Europe, J Epidemiol Commun Health, vol.67, pp.983-988, 2013.

G. Hammond, A. Langridge, and H. Leonard, Changes in risk factors for preterm birth in Western Australia 1984-2006, BJOG Int J Obstetrics Gynaecol, vol.120, pp.1051-60, 2013.

N. Auger, A. V. Hansen, and L. Mortensen, Contribution of maternal age to preterm birth rates in Denmark and Quebec, Am J Public Health, vol.103, pp.33-41, 1981.

C. Prunet, M. Delnord, M. J. Saurel-cubizolles, F. Goffinet, and B. Blondel, Risk factors of preterm birth in France in 2010 and changes since 1995: Results from the French National Perinatal Surveys, Journal of gynecology obstetrics and human reproduction, vol.46, pp.19-28, 2017.

G. Poulsen, K. Strandberg-larsen, and L. Mortensen, Exploring educational disparities in risk of preterm delivery: a comparative study of 12, European birth cohorts. Paediatric Perinatal Epidemiol, vol.29, pp.172-83, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01146842

E. Lavigne, A. S. Yasseen, and D. M. Stieb, Ambient air pollution and adverse birth outcomes: Differences by maternal comorbidities, Environ Res, vol.148, pp.457-66, 2016.

M. Delnord, B. Blondel, and N. Drewniak, Varying gestational age patterns in cesarean delivery: an international comparison, BMC Pregnancy Childbirth, vol.14, p.321, 2014.
URL : https://hal.archives-ouvertes.fr/inserm-01073790

N. Nassar, M. Schiff, and C. L. Roberts, Trends in the distribution of gestational age and contribution of planned births in New South Wales, Australia. PloS One, vol.8, p.56238, 2013.

M. F. Macdorman, E. Declercq, and J. Zhang, Obstetrical intervention and the singleton preterm birth rate in the United States from 1991-2006, Am J Public Health, vol.100, pp.2241-2248, 2010.

C. N. Schoen, S. Tabbah, and J. D. Iams, Why the United States preterm birth rate is declining, Am J Obstetrics Gynecol, vol.213, pp.175-80, 2015.

H. K. Brown, K. N. Speechley, and J. Macnab, Biological determinants of spontaneous late preterm and early term birth: a retrospective cohort study, BJOG Int J Obstetrics Gynaecol, vol.122, pp.491-500, 2015.

H. K. Brown, K. N. Speechley, and J. Macnab, Maternal, fetal, and placental conditions associated with medically indicated late preterm and early term delivery: a retrospective study, BJOG Int J Obstetrics Gynaecol, vol.123, pp.763-70, 2016.

G. Rose, Sick individuals and sick populations, Int J Epidemiol, vol.14, pp.32-40, 1985.

R. B. Saltman and O. Ferroussier-davis, The concept of stewardship in health policy, Bull World Health Org, vol.78, pp.732-741, 2000.

A. P. Betran, M. R. Torloni, J. J. Zhang, and A. M. Gulmezoglu, Section WHOWGoC. WHO Statement on Caesarean Section Rates, BJOG Int J Obstetrics Gynaecol, vol.123, pp.667-70, 2016.

, ) Data from Canada (ca) do not include births in the Province of Québec, and data from Australia (nsw) were limited to the region of New South Wales, which represents one-third of annual births in Australia, ) For country codes see Table 1. "ge" refers to German data from the regions of Hesse, Lower Saxony and Bavaria in, 2000.

G. Austria and . Haidinger,

J. Klimont, Statistics Austria

S. Belgium, W. Alexander, M. Zhang, and . Dramaix-wilmet,

. Bruxelles, Biostatistics and Clinical Research Centre

C. Leroy, A. Minsart, V. Van-leeuw, and . Centre-d'epidémiologie-périnatale, Cepip

, Evelyne Martens, SPE (Study Center for Perinatal Epidemiology

M. De-spiegelaere, Brussels Health and Social Observatory, Freddy Verkruyssen, Michel Willems

W. Aelvoet,

, Health, Food Chain Safety and Environment

J. Tafforeau, F. Renard, and D. Walckiers, Focal Point for the data collection on national health statistics for Eurostat

D. Cuignet and P. Demoulin,

H. Cloots, E. Hendrickx, and A. Kongs, Flemish Agency for Care and Health

P. Cyprus,

D. Pavlou, T. Stylianou, and . Kyprianou, Ministry of Health, Health Monitoring Unit

N. Skordes and P. Department, Makarios III Hospital; Czech Republic, Petr Velebil, Institute for the Care of Mother and Child

. Denmark,

A. Anderson,

L. Estonia and . Sakkeus, Estonian Institute for Population Studies

M. Finland, A. Gissler, and . Heino, Annukka Ritvanen, THL National Institute for Health and Welfare

B. France and . Blondel,

J. Delnord and . Zeitlin, INSERM), p.1153

A. Ego, RHEOP Register for Disabled Children and Perinatal Observatory

G. Rey,

N. Germany and . Lack,

G. Heller, AQUA-Institut

, Anton Scharl, Department of Obstetrics and Gynaecology

A. Greece, P. Antsaklis, and . Drakakis, Vaszary Kolos Teaching Hospital

H. S. Iceland, R. I. Ólafsdóttir, H. Bjarnadottir, B. Harðardóttir, and . Ragnarsdóttir, Vigdís Stefánsdóttir Landspitali University Hospital; Sigríður Haraldsdóttir, Landlaeknis Directorate of Health

A. Bonham and . Mulligan, The Healthcare Pricing Office (HPO)

M. Italy and . Cuttini, Pediatric Hospital of Baby Jesus

C. Tamburini and R. Boldrini, General Directorate for the Health Information and Statistical System, Italian Ministry of Health

S. Prati, M. Loghi, C. Castagnaro, S. Marchetti, and A. Burgio, Central Directorate for Socio-demographic and Environmental Statistics

M. Da-frè, Epidemiology Observatory, Regional Agency for Health of Tuscany Latvia, Janis Misins, Irisa Zile, The Centre for Disease Prevention and Control of Latvia

J. Lithuania, R. Isakova, J. Gaidelyte, and . Jaselione,

Y. Luxembourg, G. Wagener, and . Weber,

, Department of Health, Division of Preventive and Social Medicine, Health

A. Billy,

. Lecomte,

M. Malta and . Gatt, Directorate for Health Information and Research, National Obstetric Information Systems

J. Netherlands and . Nijhuis, Department of Obstetrics & Gynecology, Maastricht; Karin van der Pal -de Bruin and Ashna Hindori-Mohangoo, TNO Healthy Living , Department Child Health

C. Hukkelhoven and W. Ger-de,

A. Ravelli, Academic Medical Research Center

, Greta Rijninks-van

. Driel, The Royal Dutch College of Midwives

P. Tamminga, Paediatric Association of the Netherlands

M. Groesz, Perinatal Audit Netherlands

P. Elferink-stinkens, S. Netherlands, ;. Norway, and K. Klungsoyr, Medical Birth Registry of Norway, Norwegian Institute of Public Health and Department of Global Public Health and Primary Care

A. Osen and M. Ebbing, Medical Birth Registry of Norway

K. Poland and . Szamotulska, National Research Institute of Mother and Child, Department of Epidemiology and Biostatistics with collaboration from The Central Statistical Office, the National Health Fund and Ministry of Health

H. Portugal, S. Barros, and . Correia, Predictive Medicine and Public Health; Institute of Public Health; Romania, Mihai Horga, Senior Advisor at the East European Institute for Reproductive Health

A. Cucu,

J. Slovakia and . Cap, National Health Information Center

?. Slovenia and . Novak-antoli?,

, Research Unit

F. Spain and . Bolumar,

M. Jané and M. J. Vidal, Public Health Surveillance Direction

C. Barona and R. Mas,

A. Recio and A. ,

K. Sweden, E. Gottvall, and . Lundqvist, The National Board of Health and Welfare, Department of Statistics, Monitoring and Evaluation

S. Switzerland and . Berrut,

C. König, M. Schmid, . Institut-für-hebammen, and . Zürcher,

J. Chalmers, Kirsten Monteath, Information Services Division

M. Climson,

L. Marr, Healthcare Improvement Scotland

G. Thomas and R. ,

. Osborne, Health Statistics and Analysis Unit

R. Brown, NHS Wales Informatics Service

D. Sweet and J. Evans, Office for National Statistics

S. Magill,

A. Graham and H. Reid,

T. Falconer and K. Mcconnell, Northern Ireland Maternal and Child Health, Public Health Agency (now retired

N. Mccomb, Human Fertilisation and Embryology Authority

, Definition of term pregnancy, Obstetrics and gynecology, vol.579, issue.5, pp.1139-1179, 2013.

, Euro-Peristat project with SCPE and EUROCAT, European Perinatal Health Report. The health and care of pregnant women and babies in Europe in 2010, 2013.

H. Abdel-aleem, O. M. Shaaban, and A. Ma, Cervical pessary for preventing preterm birth

, The Cochrane database of systematic reviews, vol.2013, p.7873

M. Altman, E. Bonamy, A. K. Wikstrom, A. K. Cnattingius, and S. , Cause-specific infant mortality in a population-based Swedish study of term and post-term births: the contribution of gestational age and birth weight, BMJ open, vol.2, issue.4, 2012.

A. College-of-o and G. , ACOG committee opinion no. 561: Nonmedically indicated early-term deliveries, Obstetrics and gynecology, vol.121, issue.4, pp.911-916, 2013.

C. V. Ananth, A. M. Friedman, and C. Gyamfi-bannerman, Epidemiology of moderate preterm, late preterm and early term delivery, Clinics in perinatology, vol.40, issue.4, pp.601-611, 2013.

C. V. Ananth and A. M. Vintzileos, Trends in cesarean delivery at preterm gestation and association with perinatal mortality, American journal of obstetrics and gynecology, vol.204, issue.6, pp.505-506, 2011.

N. Auger, L. Leduc, A. I. Naimi, and W. D. Fraser, Delivery at Term: Impact of University Education by Week of Gestation, J Obstet Gynaecol Can, vol.38, issue.2, pp.118-142, 2016.

D. Aune, S. Schlesinger, T. Henriksen, O. D. Saugstad, and S. Tonstad, Physical activity and the risk of preterm birth: a systematic review and meta-analysis of epidemiological studies. BJOG : an international journal of obstetrics and gynaecology, 2017.

K. Baicker, K. S. Buckles, and A. Chandra, Geographic variation in the appropriate use of cesarean delivery, Health affairs, vol.25, issue.5, pp.355-67, 2006.

F. C. Barros, A. T. Papageorghiou, C. G. Victora, J. A. Noble, R. Pang et al., The distribution of clinical phenotypes of preterm birth syndrome: implications for prevention, JAMA pediatrics, vol.169, issue.3, pp.220-229, 2015.

R. E. Behrman and . Ba, Preterm Birth: Causes, Consequences, and Prevention. The National Academies Collection: Reports funded by National Institutes of Health, 2007.

L. Belbasis, M. D. Savvidou, C. Kanu, E. Evangelou, and I. Tzoulaki, Birth weight in relation to health and disease in later life: an umbrella review of systematic reviews and meta-analyses, BMC medicine, vol.14, issue.1, p.147, 2016.

L. Bergenhenegouwen, F. Vlemmix, S. Ensing, J. Schaaf, J. Van-der-post et al.,

, Preterm Breech Presentation: A Comparison of Intended Vaginal and Intended Cesarean Delivery, Obstetrics and gynecology, vol.126, issue.6, pp.1223-1253, 2015.

A. P. Betran, M. R. Torloni, J. J. Zhang, and A. M. Gulmezoglu, Section WHOWGoC. WHO Statement on Caesarean Section Rates, BJOG : an international journal of obstetrics and gynaecology, vol.123, issue.5, pp.667-70, 2016.

H. Blencowe, S. Cousens, D. Chou, M. Oestergaard, L. Say et al., Born too soon: the global epidemiology of 15 million preterm births, Reproductive health, vol.10, 2013.

B. Blondel, N. Lelong, M. Kermarrec, and F. Goffinet, National Coordination Group of the National Perinatal S. Trends in perinatal health in France from 1995 to 2010. Results from the French National Perinatal Surveys, J Gynecol Obstet Biol Reprod, vol.41, issue.4, pp.1-15, 2012.

H. K. Brown, K. N. Speechley, J. Macnab, R. Natale, and M. K. Campbell, Neonatal morbidity associated with late preterm and early term birth: the roles of gestational age and biological determinants of preterm birth, International journal of epidemiology, vol.43, issue.3, pp.802-816, 2014.

H. K. Brown, K. N. Speechley, J. Macnab, R. Natale, and M. K. Campbell, Maternal, fetal, and placental conditions associated with medically indicated late preterm and early term delivery: a retrospective study, BJOG, vol.123, issue.5, pp.763-70, 2016.

H. K. Brown, K. N. Speechley, J. Macnab, R. Natale, and M. K. Campbell, Biological determinants of spontaneous late preterm and early term birth: a retrospective cohort study, BJOG : an international journal of obstetrics and gynaecology, vol.122, issue.4, pp.491-500, 2015.

S. L. Clark, D. R. Frye, J. A. Meyers, M. A. Belfort, G. A. Dildy et al., Reduction in elective delivery at <39 weeks of gestation: comparative effectiveness of 3 approaches to change and the impact on neonatal intensive care admission and stillbirth, American journal of obstetrics and gynecology, vol.203, issue.5, pp.449-450, 2010.

S. Cnattingius, E. Villamor, S. Johansson, E. Bonamy, A. K. Persson et al., Maternal obesity and risk of preterm delivery, JAMA, vol.309, issue.22, pp.2362-70, 2013.

I. Crippa, A. Locatelli, S. Consonni, A. Ghidini, P. Stoppa et al., Infants weighing <1500 g: better born too small or too soon? American journal of perinatology, vol.29, pp.693-701, 2012.

C. Crump, K. Sundquist, J. Sundquist, and M. A. Winkleby, Gestational age at birth and mortality in young adulthood, Jama, vol.306, issue.11, pp.1233-1273, 2011.

C. Crump, K. Sundquist, M. A. Winkleby, and J. Sundquist, Early-term birth (37-38 weeks) and mortality in young adulthood, Epidemiology, vol.24, issue.2, pp.270-276, 2013.

M. Delnord, B. Blondel, N. Drewniak, K. Klungsoyr, F. Bolumar et al., Varying gestational age patterns in cesarean delivery: an international comparison, BMC pregnancy and childbirth, vol.14, p.321, 2014.
URL : https://hal.archives-ouvertes.fr/inserm-01073790

M. Delnord, B. Blondel, and J. Zeitlin, What contributes to disparities in the preterm birth rate in European countries?, Current opinion in obstetrics & gynecology, vol.27, issue.2, pp.133-175, 2015.

J. G. Derraik, M. Lundgren, W. S. Cutfield, and F. Ahlsson, Maternal Height and Preterm Birth: A Study on 192,432 Swedish Women, PloS one, vol.11, issue.4, p.154304, 2016.

G. Dueker, J. Chen, C. Cowling, and B. Haskin, Early developmental outcomes predicted by gestational age from 35 to 41weeks, Early Hum Dev, vol.103, pp.85-90, 2016.

L. Englund-ogge, A. L. Brantsaeter, V. Sengpiel, M. Haugen, B. E. Birgisdottir et al., Euro-Peristat project with SCPE and EUROCAT, European Perinatal Health Report. The health and care of pregnant women and babies in Europe in 2010, Bmj, vol.348, 2013.

R. J. Feise, Do multiple outcome measures require p-value adjustment, BMC Med Res Methodol, vol.2, issue.8, 2002.

C. Ferre, W. Callaghan, C. Olson, A. Sharma, and W. Barfield, Effects of Maternal Age and Age-Specific Preterm Birth Rates on Overall Preterm Birth Rates -United States, MMWR Morbidity and mortality weekly report, vol.65, issue.43, pp.1181-1185, 2007.

D. M. Ferrero, J. Larson, B. Jacobsson, D. Renzo, G. C. Norman et al., Cross-Country Individual Participant Analysis of 4.1 Million Singleton Births in 5 Countries with Very High Human Development Index Confirms Known Associations but Provides No Biologic Explanation for 2/3 of All Preterm Births, PloS one, vol.11, issue.9, p.162506, 2016.

D. Field, B. Bajuk, B. N. Manktelow, T. Vincent, J. Dorling et al., Geographically based investigation of the influence of very-preterm births on routine mortality statistics from the UK and Australia. Archives of disease in childhood Fetal and neonatal edition, vol.93, pp.212-218, 2008.

D. Field, E. S. Draper, A. Fenton, E. Papiernik, J. Zeitlin et al., Rates of very preterm birth in Europe and neonatal mortality rates. Archives of disease in childhood Fetal and neonatal edition, vol.94, pp.253-259, 2009.

K. E. Fitzpatrick, D. Tuffnell, J. J. Kurinczuk, and M. Knight, Pregnancy at very advanced maternal age: a UK population-based cohort study. BJOG : an international journal of obstetrics and gynaecology, 2016.

H. A. Frey and M. A. Klebanoff, The epidemiology, etiology, and costs of preterm birth, Seminars in fetal & neonatal medicine, vol.21, issue.2, pp.68-73, 2016.

A. J. Gagnon, M. Zimbeck, J. Zeitlin, R. Collaboration, S. Alexander et al., Migration to western industrialised countries and perinatal health: a systematic review, Soc Sci Med, vol.69, issue.6, pp.934-980, 2009.

M. O. Gardner, R. L. Goldenberg, S. P. Cliver, J. M. Tucker, K. G. Nelson et al., The origin and outcome of preterm twin pregnancies, Obstetrics and gynecology, vol.85, issue.4, pp.553-560, 1995.

J. V. Garn, T. Nagulesapillai, A. Metcalfe, S. Tough, and M. R. Kramer, International comparison of common risk factors of preterm birth between the U.S. and Canada, using PRAMS and MES, 2005.

, Maternal and child health journal, vol.19, issue.4, pp.811-819, 2015.

L. Giorgis-allemand, M. Pedersen, C. Bernard, I. Aguilera, R. M. Beelen et al., The Influence of Meteorological Factors and Atmospheric Pollutants on the Risk of Preterm Birth, American journal of epidemiology, vol.185, issue.4, pp.247-58, 2017.

M. Gissler, A. D. Mohangoo, B. Blondel, J. Chalmers, A. Macfarlane et al., Perinatal health monitoring in Europe: results from the EURO-PERISTAT project. Informatics for health & social care, vol.35, pp.64-79, 2010.

R. L. Goldenberg, J. F. Culhane, J. D. Iams, and R. Romero, Epidemiology and causes of preterm birth, Lancet, vol.371, issue.9606, pp.75-84, 2008.

R. L. Goldenberg, M. G. Gravett, J. Iams, A. T. Papageorghiou, S. A. Waller et al., The preterm birth syndrome: issues to consider in creating a classification system, American journal of obstetrics and gynecology, vol.206, issue.2, pp.113-121, 2012.

J. B. Gould, J. Mayo, G. M. Shaw, and D. K. Stevenson, Swedish and American studies show that initiatives to decrease maternal obesity could play a key role in reducing preterm birth, Acta paediatrica, vol.103, issue.6, pp.586-91, 2014.

J. W. Graham, A. E. Olchowski, and T. D. Gilreath, How many imputations are really needed? Some practical clarifications of multiple imputation theory, Prev Sci, vol.8, issue.3, pp.206-219, 2007.

D. M. Haas, D. M. Caldwell, P. Kirkpatrick, J. J. Mcintosh, and N. J. Welton, Tocolytic therapy for preterm delivery: systematic review and network meta-analysis, Bmj, vol.345, p.6226, 2012.

Z. Han, O. Lutsiv, S. Mulla, and S. D. Mcdonald, Maternal height and the risk of preterm birth and low birth weight: a systematic review and meta-analyses, J Obstet Gynaecol Can, vol.34, issue.8, pp.721-767, 2012.

E. Helle, S. Andersson, U. Hakkinen, J. Jarvelin, J. Eskelinen et al., Morbidity and Health Care Costs After Early Term Birth. Paediatric and perinatal epidemiology, vol.30, pp.533-573, 2016.

M. Hermann, L. Ray, C. Blondel, B. Goffinet, F. Zeitlin et al., The risk of prelabor and intrapartum cesarean delivery among overweight and obese women: possible preventive actions, Am J Obstet Gynecol, vol.212, issue.2, pp.241-242, 2015.

G. Huel, E. Keller, S. Gueguen, C. Robert, J. Bouyer et al., Effective prevention of preterm birth: the French experience measured at Haguenau. Birth defects original article series, vol.25, pp.1-234, 1989.

J. D. Iams, R. Romero, J. F. Culhane, and R. L. Goldenberg, Primary, secondary, and tertiary interventions to reduce the morbidity and mortality of preterm birth, Lancet, vol.371, issue.9607, pp.164-75, 2008.

J. Jacob, M. Lehne, A. Mischker, N. Klinger, C. Zickermann et al., Cost effects of preterm birth: a comparison of health care costs associated with early preterm, late preterm, and full-term birth in the first 3 years after birth. The European journal of health economics : HEPAC : health economics in prevention and care, 2016.

M. S. Kramer, Born too small or too soon. The Lancet Global health, vol.1, pp.7-8, 2013.

V. A. Kushnir, D. H. Barad, D. F. Albertini, S. K. Darmon, and N. Gleicher, Systematic review of worldwide trends in assisted reproductive technology, Reproductive biology and endocrinology : RB&E, vol.15, issue.1, p.6, 2004.

B. Larroque, G. Breart, M. Kaminski, M. Dehan, M. Andre et al., Survival of very preterm infants: Epipage, a population based cohort study. Archives of disease in childhood Fetal and neonatal edition, vol.89, pp.139-183, 2004.

J. E. Lawn, H. Blencowe, S. Oza, D. You, A. C. Lee et al., Every Newborn: progress, priorities, and potential beyond survival, Lancet, vol.384, issue.9938, pp.189-205, 2014.

J. E. Lawn, M. G. Gravett, T. M. Nunes, C. E. Rubens, C. Stanton et al., Global report on preterm birth and stillbirth (1 of 7): definitions, description of the burden and opportunities to improve data, BMC pregnancy and childbirth, vol.10, 2010.

D. J. Lorenz, S. Datta, and S. J. Harkema, Marginal association measures for clustered data, Statistics in medicine, vol.30, issue.27, pp.3181-91, 2011.

D. A. Luthy, J. A. Malmgren, R. W. Zingheim, C. Leininger, J. E. Hart et al., Association of extremes of prepregnancy BMI with the clinical presentations of preterm birth, Am J Obstet Gynecol, vol.188, issue.6, pp.428-429, 2003.

M. F. Macdorman, T. J. Matthews, A. D. Mohangoo, and J. Zeitlin, International comparisons of infant mortality and related factors: United States and Europe, National Vital Statistics System, vol.63, issue.5, pp.1-6, 2010.

C. S. Malley, J. C. Kuylenstierna, H. W. Vallack, D. K. Henze, H. Blencowe et al., Preterm birth associated with maternal fine particulate matter exposure: A global, regional and national assessment, Environment international, vol.101, pp.173-82, 2017.

M. H. Malloy, Impact of cesarean section on intermediate and late preterm births: United States, Birth, vol.36, issue.1, pp.26-33, 2000.

L. J. Mangham, S. Petrou, L. W. Doyle, E. S. Draper, and N. Marlow, The cost of preterm birth throughout childhood in England and Wales, Pediatrics, vol.123, issue.2, pp.312-339, 2009.

L. Mikkelsen, D. E. Phillips, C. Abouzahr, P. W. Setel, D. De-savigny et al., International comparisons of fetal and neonatal mortality rates in high-income countries: should exclusion thresholds be based on birth weight or gestational age?, Lancet. 2015. 72. Mohangoo AD, vol.8, issue.5, p.64869, 2013.

A. I. Naimi and N. Auger, Population-wide folic acid fortification and preterm birth: testing the folate depletion hypothesis, American journal of public health, vol.105, issue.4, pp.793-798, 2015.

J. P. Newnham, J. E. Dickinson, R. J. Hart, C. E. Pennell, C. A. Arrese et al., Strategies to prevent preterm birth, Frontiers in immunology, vol.5, p.584, 2014.

J. P. Newnham, M. W. Kemp, S. W. White, C. A. Arrese, R. J. Hart et al., Applying Precision Public Health to Prevent Preterm Birth. Frontiers in public health, vol.5, p.66, 2017.

E. R. Norwitz and A. B. Caughey, Progesterone supplementation and the prevention of preterm birth, Reviews in obstetrics & gynecology, vol.4, issue.2, pp.60-72, 2011.

H. Offermann, C. Gebauer, F. Pulzer, A. Blaser, U. Thome et al., Cesarean section increases the risk of respiratory adaptive disorders in healthy late preterm and two groups of mature newborns, Zeitschrift fur Geburtshilfe und Neonatologie, vol.219, issue.6, pp.259-65, 2015.

E. Papiernik, Preventing Preterm Birth-is it Really Impossible?: A Comment on the IOM Report on Preterm Birth. Maternal and child health journal, vol.11, pp.407-417, 2007.

E. Papiernik, J. Bouyer, K. Yaffe, G. Winisdorffer, D. Collin et al., Women's acceptance of a preterm birth prevention program, American journal of obstetrics and gynecology, vol.155, issue.5, pp.939-985, 1986.

C. Phillips, Z. Velji, C. Hanly, and A. Metcalfe, Risk of recurrent spontaneous preterm birth: a systematic review and meta-analysis, BMJ Open, vol.7, issue.6, p.15402, 2017.

J. Polettini, T. Cobo, M. Kacerovsky, A. E. Vinturache, P. Laudanski et al., Biomarkers of spontaneous preterm birth: a systematic review of studies using multiplex analysis, Journal of perinatal medicine, vol.45, issue.1, pp.71-84, 2017.

G. Poulsen, K. Strandberg-larsen, L. Mortensen, H. Barros, S. Cordier et al., Exploring educational disparities in risk of preterm delivery: a comparative study of 12 European birth cohorts, Paediatr Perinat Epidemiol, vol.29, issue.3, pp.172-83, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01146842

K. M. Rappazzo, L. C. Messer, J. S. Jagai, C. L. Gray, S. C. Grabich et al., The associations between environmental quality and preterm birth in the United States, vol.14, p.50, 2000.

J. L. Richards, M. S. Kramer, P. Deb-rinker, J. Rouleau, L. Mortensen et al., Temporal Trends in Late Preterm and Early Term Birth Rates in 6 High-Income Countries in North America and Europe and Association With Clinician-Initiated Obstetric Interventions, Jama, vol.316, issue.4, pp.410-419, 2016.

K. R. Risnes, K. Pape, J. H. Bjorngaard, D. Moster, M. B. Bracken et al., Premature Adult Death in Individuals Born Preterm: A Sibling Comparison in a Prospective Nationwide Follow-Up Study, PloS one, vol.11, issue.11, p.165051, 2016.

T. Rogne, M. J. Tielemans, M. F. Chong, C. S. Yajnik, G. V. Krishnaveni et al., Associations of Maternal Vitamin B12 Concentration in Pregnancy With the Risks of Preterm Birth and Low Birth Weight: A Systematic Review and Meta-Analysis of Individual Participant Data, American journal of epidemiology, vol.185, issue.3, pp.212-235, 2017.

G. Rose, Sick individuals and sick populations, International journal of epidemiology, vol.14, issue.1, pp.32-40, 1985.

C. E. Rubens, Y. Sadovsky, L. Muglia, M. G. Gravett, E. Lackritz et al., Prevention of preterm birth: harnessing science to address the global epidemic, Science translational medicine, vol.6, issue.262, pp.262-267, 2014.

M. Ruiz, P. Goldblatt, J. Morrison, L. Kukla, J. Svancara et al., Mother's education and the risk of preterm and small for gestational age birth: a DRIVERS meta-analysis of 12 European cohorts, Journal of epidemiology and community health, vol.69, issue.9, pp.826-859, 2015.

G. Saccone and V. Berghella, Folic acid supplementation in pregnancy to prevent preterm birth: a systematic review and meta-analysis of randomized controlled trials, European journal of obstetrics, gynecology, and reproductive biology, vol.199, pp.76-81, 2016.

S. Saigal and L. W. Doyle, An overview of mortality and sequelae of preterm birth from infancy to adulthood, Lancet, vol.371, issue.9608, pp.261-270, 2008.

M. J. Saurel-cubizolles, J. Zeitlin, N. Lelong, E. Papiernik, D. Renzo et al., Employment, working conditions, and preterm birth: results from the Europop case-control survey, Journal of epidemiology and community health, vol.58, issue.5, pp.395-401, 2004.
URL : https://hal.archives-ouvertes.fr/inserm-00086409

S. K. Schmitt, L. Sneed, and C. S. Phibbs, Costs of newborn care in California: a population-based study, Pediatrics, vol.117, issue.1, pp.154-60, 2006.

A. K. Searle, L. G. Smithers, C. R. Chittleborough, T. A. Gregory, and J. W. Lynch, Gestational age and school achievement: a population study, 2017.

S. Sengupta, V. Carrion, J. Shelton, R. J. Wynn, R. M. Ryan et al., Adverse neonatal outcomes associated with early-term birth, JAMA Pediatr, vol.167, issue.11, pp.1053-1062, 2013.

L. Sentilhes, M. V. Senat, P. Y. Ancel, E. Azria, G. Benoist et al., Prevention of spontaneous preterm birth: Guidelines for clinical practice from the French College of Gynaecologists and Obstetricians (CNGOF), vol.210, pp.217-241, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01573819

L. Sentilhes, M. V. Senat, P. Y. Ancel, E. Azria, G. Benoist et al., Prevention of spontaneous preterm birth: Guidelines for clinical practice from the French College of Gynaecologists and Obstetricians (CNGOF), vol.210, pp.217-241, 2017.
URL : https://hal.archives-ouvertes.fr/hal-01573819

E. Service, Maternity and paternity leave in the EU, p.593543, 2016.

D. Shaw, J. M. Guise, N. Shah, K. Gemzell-danielsson, K. S. Joseph et al., Drivers of maternity care in high-income countries: can health systems support woman-centred care?, Lancet, vol.388, pp.2282-95, 2016.

L. E. Simmons, C. E. Rubens, G. L. Darmstadt, and M. G. Gravett, Preventing preterm birth and neonatal mortality: exploring the epidemiology, causes, and interventions. Seminars in perinatology, vol.34, pp.408-423, 2010.

L. K. Smith, E. S. Draper, T. A. Evans, D. J. Field, S. J. Johnson et al., Associations between late and moderately preterm birth and smoking, alcohol, drug use and diet: a population-based casecohort study, Archives of disease in childhood Fetal and neonatal edition, vol.100, issue.6, pp.486-91, 2015.

I. K. Sorbye, A. K. Daltveit, J. Sundby, and S. Vangen, Preterm subtypes by immigrants' length of residence in Norway: a population-based study, BMC Pregnancy Childbirth, vol.14, p.239, 2014.

I. K. Sorbye, S. Wanigaratne, and M. L. Urquia, Variations in gestational length and preterm delivery by race, ethnicity and migration. Best practice & research, Clinical obstetrics & gynaecology, vol.32, pp.60-68, 2016.

C. Y. Spong, Defining "term" pregnancy: recommendations from the Defining "Term" Pregnancy Workgroup, Jama, vol.309, issue.23, pp.2445-2451, 2013.

A. Staneva, F. Bogossian, M. Pritchard, and A. Wittkowski, The effects of maternal depression, anxiety, and perceived stress during pregnancy on preterm birth: A systematic review, Women and birth : journal of the Australian College of Midwives, vol.28, issue.3, pp.179-93, 2015.

, Operational Manual, Statistics OEUIf. ISCED, 2011.

D. M. Stieb, L. Chen, M. Eshoul, and S. Judek, Ambient air pollution, birth weight and preterm birth: a systematic review and meta-analysis, Environ Res, vol.117, pp.100-111, 2012.

M. R. Torloni, A. P. Betran, S. Daher, M. Widmer, S. M. Dolan et al., Maternal BMI and preterm birth: a systematic review of the literature with meta-analysis, J Matern Fetal Neonatal Med, vol.22, issue.11, pp.957-70, 2009.

M. L. Urquia, R. H. Glazier, A. J. Gagnon, L. H. Mortensen, N. Andersen et al., Disparities in pre-eclampsia and eclampsia among immigrant women giving birth in six industrialised countries, BJOG : an international journal of obstetrics and gynaecology, vol.121, issue.12, pp.1492-500, 2014.

M. A. Van-os, A. J. Van-der-ven, C. E. Kleinrouweler, E. Schuit, B. M. Kazemier et al., Preventing Preterm Birth with Progesterone in Women with a Short Cervical Length from a Low-Risk Population: A Multicenter Double-Blind Placebo-Controlled Randomized Trial, American journal of perinatology, vol.32, issue.10, pp.993-1000, 2015.

R. Von-linsingen, M. Bicalho, and N. S. De-carvalho, Baby born too soon: an overview and the impact beyond the infection. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstet, vol.30, pp.1238-1280, 2017.

J. L. Wallace, K. L. Aland, K. Blatt, E. Moore, and E. A. Defranco, Modifying the risk of recurrent preterm birth: influence of trimester-specific changes in smoking behaviors, American journal of obstetrics and gynecology, 2016.

M. E. Wallace, P. Mendola, Z. Chen, B. S. Hwang, and K. L. Grantz, Preterm Birth in the Context of Increasing Income Inequality. Maternal and child health journal, vol.20, pp.164-71, 2016.

A. J. Wilcox, On the importance--and the unimportance--of birthweight, International journal of epidemiology, vol.30, issue.6, pp.1233-1274, 2001.

L. F. Wong, J. Wilkes, K. Korgenski, M. W. Varner, and T. A. Manuck, Risk factors associated with preterm birth after a prior term delivery, BJOG : an international journal of obstetrics and gynaecology, vol.123, issue.11, pp.1772-1780, 2016.

J. Yang, R. J. Baer, V. Berghella, C. Chambers, P. Chung et al., Recurrence of Preterm Birth and Early Term Birth, Obstetrics and gynecology, vol.128, issue.2, pp.364-72, 2016.

S. Yoshida, J. Martines, J. E. Lawn, S. Wall, J. P. Souza et al., Setting research priorities to improve global newborn health and prevent stillbirths by 2025, Journal of global health, vol.6, issue.1, p.10508, 2016.

J. Zeitlin, B. Blondel, and C. V. Ananth, Characteristics of childbearing women, obstetrical interventions and preterm delivery: a comparison of the US and France. Maternal and child health journal, vol.19, pp.1107-1121, 2015.

J. Zeitlin, E. Combier, M. Levaillant, L. Lasbeur, H. Pilkington et al., Neighbourhood socio-economic characteristics and the risk of preterm birth for migrant and non-migrant women: a study in a French district, Paediatr Perinat Epidemiol, vol.25, issue.4, pp.347-56, 2011.
URL : https://hal.archives-ouvertes.fr/halshs-00726488

J. Zeitlin, D. Lallo, D. Blondel, B. Weber, T. Schmidt et al., Variability in caesarean section rates for very preterm births at 28-31 weeks of gestation in 10 European regions: results of the MOSAIC project, European journal of obstetrics, gynecology, and reproductive biology, vol.149, issue.2, pp.147-52, 2010.

J. Zeitlin, K. Szamotulska, N. Drewniak, A. D. Mohangoo, J. Chalmers et al., Preterm birth time trends in Europe: a study of 19 countries, BJOG : an international journal of obstetrics and gynaecology, vol.120, issue.11, pp.1356-65, 2013.

X. Zhang and M. S. Kramer, The rise in singleton preterm births in the USA: the impact of labour induction, BJOG : an international journal of obstetrics and gynaecology, vol.119, issue.11, pp.1309-1324, 2012.

X. Zhang and M. S. Kramer, Variations in mortality and morbidity by gestational age among infants born at term. The Journal of pediatrics, vol.154, p.1, 2009.

. .. Acknowledgements,

. .. Affiliation,

. List and . .. Abbreviations,

. .. French],

. .. Summary,

. .. Publications,

. .. Invited-presentations,

. .. Work-plan,

. .. Data-sources,

. Aggregate-data-from-the, C. Us, and . .. Prebic-project,

A. .. Wales,

. Individual-level, . Data, and . France, , p.46, 2010.

. Data and . .. Definitions,

. .. Study-population,

. .. Analysis-strategy,

. .. Synthesis,

. Broadening, . Scope, . Preterm, . Prevention-for-a-greater-public, and . Healthimpact?????????????????????????????????????????????,

. Provider-initiated and . .. Births,

. .. Perspectives,

. .. References,

. Table and . .. Contents,

. List and . .. Illustrations,

?. , Supplemental Figure S1B. Associations between indicated preterm and early term birth rates in, p.84

, Supplemental Figure S2A. Associations between annual growth rates for spontaneous preterm and early term births between 1996 aad ???????????????????????, p.85

, Supplemental Figure S2B. Associations between annual growth rates for indicated preterm and early terr irths ettee ad ?????????????????????????????, p.86