{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,4]],"date-time":"2026-03-04T15:59:25Z","timestamp":1772639965437,"version":"3.50.1"},"reference-count":64,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2023,9,21]],"date-time":"2023-09-21T00:00:00Z","timestamp":1695254400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2023,9,21]],"date-time":"2023-09-21T00:00:00Z","timestamp":1695254400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81971401"],"award-info":[{"award-number":["81971401"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81874266"],"award-info":[{"award-number":["81874266"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81673183"],"award-info":[{"award-number":["81673183"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Key Research and Development Program of China","award":["2018YFC1004600"],"award-info":[{"award-number":["2018YFC1004600"]}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur J Nutr"],"published-print":{"date-parts":[[2024,2]]},"DOI":"10.1007\/s00394-023-03223-8","type":"journal-article","created":{"date-parts":[[2023,9,21]],"date-time":"2023-09-21T05:01:36Z","timestamp":1695272496000},"page":"107-119","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The association of preconceptional folic acid supplementation with gestational age and preterm birth risk in twin pregnancies: a prospective cohort study in China"],"prefix":"10.1007","volume":"63","author":[{"given":"Yuanqing","family":"Xia","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lili","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zichong","family":"Long","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yiting","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li","family":"Gao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renyi","family":"Hua","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shenghui","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanlin","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2023,9,21]]},"reference":[{"issue":"9","key":"3223_CR1","doi-asserted-by":"publisher","first-page":"e25239","DOI":"10.1371\/journal.pone.0025239","volume":"6","author":"J Smits","year":"2011","unstructured":"Smits J, Monden C (2011) Twinning across the developing world. PLoS ONE 6(9):e25239. https:\/\/doi.org\/10.1371\/journal.pone.0025239","journal-title":"PLoS ONE"},{"issue":"3","key":"3223_CR2","doi-asserted-by":"publisher","first-page":"156","DOI":"10.1053\/j.semperi.2012.02.001","volume":"36","author":"CV Ananth","year":"2012","unstructured":"Ananth CV, Chauhan SP (2012) Epidemiology of twinning in developed countries. Semin Perinatol 36(3):156\u2013161. https:\/\/doi.org\/10.1053\/j.semperi.2012.02.001","journal-title":"Semin Perinatol"},{"issue":"6","key":"3223_CR3","doi-asserted-by":"publisher","first-page":"1666","DOI":"10.1093\/humrep\/deab029","volume":"36","author":"C Monden","year":"2021","unstructured":"Monden C, Pison G, Smits J (2021) Twin peaks: more twinning in humans than ever before. Hum Reprod (Oxford, England) 36(6):1666\u20131673. https:\/\/doi.org\/10.1093\/humrep\/deab029","journal-title":"Hum Reprod (Oxford, England)"},{"issue":"1","key":"3223_CR4","doi-asserted-by":"publisher","first-page":"e0209962","DOI":"10.1371\/journal.pone.0209962","volume":"14","author":"C Deng","year":"2019","unstructured":"Deng C, Dai L, Yi L, Li X, Deng K, Mu Y, Wang K, Tao J, Li Q, Xu L (2019) Temporal trends in the birth rates and perinatal mortality of twins: a population-based study in China. PLoS ONE 14(1):e0209962. https:\/\/doi.org\/10.1371\/journal.pone.0209962","journal-title":"PLoS ONE"},{"issue":"6","key":"3223_CR5","doi-asserted-by":"publisher","first-page":"336","DOI":"10.1016\/j.siny.2010.06.006","volume":"15","author":"S Stock","year":"2010","unstructured":"Stock S, Norman J (2010) Preterm and term labour in multiple pregnancies. Semin Fetal Neonatal Med 15(6):336\u2013341. https:\/\/doi.org\/10.1016\/j.siny.2010.06.006","journal-title":"Semin Fetal Neonatal Med"},{"issue":"10","key":"3223_CR6","doi-asserted-by":"publisher","first-page":"Cd012024","DOI":"10.1002\/14651858.CD012024.pub2","volume":"10","author":"JM Dodd","year":"2017","unstructured":"Dodd JM, Grivell RM, Obrien CM, Dowswell T, Deussen AR (2017) Prenatal administration of progestogens for preventing spontaneous preterm birth in women with a multiple pregnancy. Cochrane Database Syst Rev 10(10):Cd012024. https:\/\/doi.org\/10.1002\/14651858.CD012024.pub2","journal-title":"Cochrane Database Syst Rev"},{"issue":"9832","key":"3223_CR7","doi-asserted-by":"publisher","first-page":"2162","DOI":"10.1016\/s0140-6736(12)60820-4","volume":"379","author":"H Blencowe","year":"2012","unstructured":"Blencowe H, Cousens S, Oestergaard MZ, Chou D, Moller AB, Narwal R, Adler A, Vera Garcia C, Rohde S, Say L, Lawn JE (2012) 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 (London, England) 379(9832):2162\u20132172. https:\/\/doi.org\/10.1016\/s0140-6736(12)60820-4","journal-title":"Lancet (London, England)"},{"issue":"10063","key":"3223_CR8","doi-asserted-by":"publisher","first-page":"3027","DOI":"10.1016\/s0140-6736(16)31593-8","volume":"388","author":"L Liu","year":"2016","unstructured":"Liu L, Oza S, Hogan D, Chu Y, Perin J, Zhu J, Lawn JE, Cousens S, Mathers C, Black RE (2016) Global, regional, and national causes of under-5 mortality in 2000\u201315: an updated systematic analysis with implications for the Sustainable Development Goals. Lancet (London, England) 388(10063):3027\u20133035. https:\/\/doi.org\/10.1016\/s0140-6736(16)31593-8","journal-title":"Lancet (London, England)"},{"key":"3223_CR9","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1016\/j.bpobgyn.2018.04.003","volume":"52","author":"JP Vogel","year":"2018","unstructured":"Vogel JP, Chawanpaiboon S, Moller AB, Watananirun K, Bonet M, Lumbiganon P (2018) The global epidemiology of preterm birth. Best Pract Res Clin Obstet Gynaecol 52:3\u201312. https:\/\/doi.org\/10.1016\/j.bpobgyn.2018.04.003","journal-title":"Best Pract Res Clin Obstet Gynaecol"},{"issue":"9814","key":"3223_CR10","doi-asserted-by":"publisher","first-page":"445","DOI":"10.1016\/s0140-6736(11)61577-8","volume":"379","author":"MK Mwaniki","year":"2012","unstructured":"Mwaniki MK, Atieno M, Lawn JE, Newton CR (2012) Long-term neurodevelopmental outcomes after intrauterine and neonatal insults: a systematic review. Lancet (London, England) 379(9814):445\u2013452. https:\/\/doi.org\/10.1016\/s0140-6736(11)61577-8","journal-title":"Lancet (London, England)"},{"issue":"3","key":"3223_CR11","doi-asserted-by":"publisher","first-page":"259","DOI":"10.2223\/jped.2196","volume":"88","author":"BF Ara\u00fajo","year":"2012","unstructured":"Ara\u00fajo BF, Zatti H, Madi JM, Coelho MB, Olmi FB, Canabarro CT (2012) Analysis of neonatal morbidity and mortality in late-preterm newborn infants. J Pediatr 88(3):259\u2013266. https:\/\/doi.org\/10.2223\/jped.2196","journal-title":"J Pediatr"},{"issue":"9608","key":"3223_CR12","doi-asserted-by":"publisher","first-page":"261","DOI":"10.1016\/s0140-6736(08)60136-1","volume":"371","author":"S Saigal","year":"2008","unstructured":"Saigal S, Doyle LW (2008) An overview of mortality and sequelae of preterm birth from infancy to adulthood. Lancet (London, England) 371(9608):261\u2013269. https:\/\/doi.org\/10.1016\/s0140-6736(08)60136-1","journal-title":"Lancet (London, England)"},{"issue":"1","key":"3223_CR13","doi-asserted-by":"publisher","first-page":"21","DOI":"10.3945\/an.111.000992","volume":"3","author":"KS Crider","year":"2012","unstructured":"Crider KS, Yang TP, Berry RJ, Bailey LB (2012) Folate and DNA methylation: a review of molecular mechanisms and the evidence for folate\u2019s role. Adv Nutr (Bethesda, Md) 3(1):21\u201338. https:\/\/doi.org\/10.3945\/an.111.000992","journal-title":"Adv Nutr (Bethesda, Md)"},{"issue":"12","key":"3223_CR14","doi-asserted-by":"publisher","first-page":"Cd007950","DOI":"10.1002\/14651858.CD007950.pub3","volume":"2015","author":"LM De-Regil","year":"2015","unstructured":"De-Regil LM, Pe\u00f1a-Rosas JP, Fern\u00e1ndez-Gaxiola AC, Rayco-Solon P (2015) Effects and safety of periconceptional oral folate supplementation for preventing birth defects. Cochrane Database Syst Rev 2015(12):Cd007950. https:\/\/doi.org\/10.1002\/14651858.CD007950.pub3","journal-title":"Cochrane Database Syst Rev"},{"issue":"9092","key":"3223_CR15","doi-asserted-by":"publisher","first-page":"1666","DOI":"10.1016\/s0140-6736(97)07247-4","volume":"350","author":"S Daly","year":"1997","unstructured":"Daly S, Mills JL, Molloy AM, Conley M, Lee YJ, Kirke PN, Weir DG, Scott JM (1997) Minimum effective dose of folic acid for food fortification to prevent neural-tube defects. Lancet (London, England) 350(9092):1666\u20131669. https:\/\/doi.org\/10.1016\/s0140-6736(97)07247-4","journal-title":"Lancet (London, England)"},{"issue":"26","key":"3223_CR16","doi-asserted-by":"publisher","first-page":"1832","DOI":"10.1056\/nejm199212243272602","volume":"327","author":"AE Czeizel","year":"1992","unstructured":"Czeizel AE, Dud\u00e1s I (1992) Prevention of the first occurrence of neural-tube defects by periconceptional vitamin supplementation. N Engl J Med 327(26):1832\u20131835. https:\/\/doi.org\/10.1056\/nejm199212243272602","journal-title":"N Engl J Med"},{"issue":"8164","key":"3223_CR17","doi-asserted-by":"publisher","first-page":"339","DOI":"10.1016\/s0140-6736(80)90886-7","volume":"1","author":"RW Smithells","year":"1980","unstructured":"Smithells RW, Sheppard S, Schorah CJ, Seller MJ, Nevin NC, Harris R, Read AP, Fielding DW (1980) Possible prevention of neural-tube defects by periconceptional vitamin supplementation. Lancet (London, England) 1(8164):339\u2013340. https:\/\/doi.org\/10.1016\/s0140-6736(80)90886-7","journal-title":"Lancet (London, England)"},{"issue":"4","key":"3223_CR18","doi-asserted-by":"publisher","first-page":"2181","DOI":"10.1007\/s00394-020-02409-8","volume":"60","author":"Y Wu","year":"2021","unstructured":"Wu Y, Yuan Y, Kong C, Ma Q, Ye H, Jing W, Liu J, Liu M (2021) The association between periconceptional folic acid supplementation and the risk of preterm birth: a population-based retrospective cohort study of 200,000 women in China. Eur J Nutr 60(4):2181\u20132192. https:\/\/doi.org\/10.1007\/s00394-020-02409-8","journal-title":"Eur J Nutr"},{"issue":"12","key":"3223_CR19","doi-asserted-by":"publisher","first-page":"127010","DOI":"10.1289\/ehp6386","volume":"128","author":"Q Li","year":"2020","unstructured":"Li Q, Wang YY, Guo Y, Zhou H, Wang X, Wang QM, Shen HP, Zhang YP, Yan DH, Li S, Chen G, Lin L, He Y, Yang Y, Peng ZQ, Wang HJ, Ma X (2020) Folic acid supplementation and the association between maternal airborne particulate matter exposure and preterm delivery: a national birth cohort study in China. Environ Health Perspect 128(12):127010. https:\/\/doi.org\/10.1289\/ehp6386","journal-title":"Environ Health Perspect"},{"issue":"4","key":"3223_CR20","doi-asserted-by":"publisher","first-page":"1132","DOI":"10.1093\/ije\/dyu020","volume":"43","author":"Z Li","year":"2014","unstructured":"Li Z, Ye R, Zhang L, Li H, Liu J, Ren A (2014) Periconceptional folic acid supplementation and the risk of preterm births in China: a large prospective cohort study. Int J Epidemiol 43(4):1132\u20131139. https:\/\/doi.org\/10.1093\/ije\/dyu020","journal-title":"Int J Epidemiol"},{"issue":"4","key":"3223_CR21","doi-asserted-by":"publisher","first-page":"1411","DOI":"10.1007\/s00394-015-0959-1","volume":"55","author":"X Liu","year":"2016","unstructured":"Liu X, Lv L, Zhang H, Zhao N, Qiu J, He X, Zhou M, Xu X, Cui H, Liu S, Lerro C, Lin X, Zhang C, Zhang H, Xu R, Zhu D, Dang Y, Han X, Bai H, Chen Y, Tang Z, Lin R, Yao T, Su J, Wang W, Wang Y, Ma B, Huang H, Liang J, Qiu W, Liu Q, Zhang Y (2016) Folic acid supplementation, dietary folate intake and risk of preterm birth in China. Eur J Nutr 55(4):1411\u20131422. https:\/\/doi.org\/10.1007\/s00394-015-0959-1","journal-title":"Eur J Nutr"},{"issue":"5","key":"3223_CR22","doi-asserted-by":"publisher","first-page":"e1000061","DOI":"10.1371\/journal.pmed.1000061","volume":"6","author":"R Bukowski","year":"2009","unstructured":"Bukowski R, Malone FD, Porter FT, Nyberg DA, Comstock CH, Hankins GD, Eddleman K, Gross SJ, Dugoff L, Craigo SD, Timor-Tritsch IE, Carr SR, Wolfe HM, D\u2019Alton ME (2009) Preconceptional folate supplementation and the risk of spontaneous preterm birth: a cohort study. PLoS Med 6(5):e1000061. https:\/\/doi.org\/10.1371\/journal.pmed.1000061","journal-title":"PLoS Med"},{"issue":"3","key":"3223_CR23","doi-asserted-by":"publisher","first-page":"509","DOI":"10.1017\/s0007114515004663","volume":"115","author":"JS Zheng","year":"2016","unstructured":"Zheng JS, Guan Y, Zhao Y, Zhao W, Tang X, Chen H, Xu M, Wu L, Zhu S, Liu H, Huang T, Li D (2016) Pre-conceptional intake of folic acid supplements is inversely associated with risk of preterm birth and small-for-gestational-age birth: a prospective cohort study. Br J Nutr 115(3):509\u2013516. https:\/\/doi.org\/10.1017\/s0007114515004663","journal-title":"Br J Nutr"},{"key":"3223_CR24","doi-asserted-by":"publisher","first-page":"336","DOI":"10.1186\/s12884-015-0766-y","volume":"15","author":"Y Wang","year":"2015","unstructured":"Wang Y, Cao Z, Peng Z, Xin X, Zhang Y, Yang Y, He Y, Xu J, Ma X (2015) Folic acid supplementation, preconception body mass index, and preterm delivery: findings from the preconception cohort data in a Chinese rural population. BMC Preg Childb 15:336. https:\/\/doi.org\/10.1186\/s12884-015-0766-y","journal-title":"BMC Preg Childb"},{"issue":"3","key":"3223_CR25","doi-asserted-by":"publisher","first-page":"906","DOI":"10.3945\/ajcn.111.012393","volume":"94","author":"JM Catov","year":"2011","unstructured":"Catov JM, Bodnar LM, Olsen J, Olsen S, Nohr EA (2011) Periconceptional multivitamin use and risk of preterm or small-for-gestational-age births in the Danish National Birth Cohort. Am J Clin Nutr 94(3):906\u2013912. https:\/\/doi.org\/10.3945\/ajcn.111.012393","journal-title":"Am J Clin Nutr"},{"issue":"1","key":"3223_CR26","doi-asserted-by":"publisher","first-page":"113","DOI":"10.3945\/jn.114.196352","volume":"145","author":"LW Chen","year":"2015","unstructured":"Chen LW, Lim AL, Colega M, Tint MT, Aris IM, Tan CS, Chong YS, Gluckman PD, Godfrey KM, Kwek K, Saw SM, Yap F, Lee YS, Chong MF, van Dam RM (2015) Maternal folate status, but not that of vitamins B-12 or B-6, is associated with gestational age and preterm birth risk in a multiethnic Asian population. J Nutr 145(1):113\u2013120. https:\/\/doi.org\/10.3945\/jn.114.196352","journal-title":"J Nutr"},{"issue":"3","key":"3223_CR27","doi-asserted-by":"publisher","first-page":"427","DOI":"10.3109\/14767058.2010.501127","volume":"24","author":"F Parazzini","year":"2011","unstructured":"Parazzini F, Chiaffarino F, Ricci E, Improta L, Monni G (2011) Homocysteine, red cell, and plasma folate concentrations and birth weight in Italian women: results from a prospective study. J Maternal Fetal Neonatal Med 24(3):427\u2013431. https:\/\/doi.org\/10.3109\/14767058.2010.501127","journal-title":"J Maternal Fetal Neonatal Med"},{"issue":"5","key":"3223_CR28","doi-asserted-by":"publisher","first-page":"1670","DOI":"10.1016\/j.ajog.2005.04.007","volume":"193","author":"L Leduc","year":"2005","unstructured":"Leduc L, Takser L, Rinfret D (2005) Persistance of adverse obstetric and neonatal outcomes in monochorionic twins after exclusion of disorders unique to monochorionic placentation. Am J Obstet Gynecol 193(5):1670\u20131675. https:\/\/doi.org\/10.1016\/j.ajog.2005.04.007","journal-title":"Am J Obstet Gynecol"},{"issue":"4","key":"3223_CR29","doi-asserted-by":"publisher","first-page":"935","DOI":"10.1093\/humrep\/15.4.935","volume":"15","author":"J Koudstaal","year":"2000","unstructured":"Koudstaal J, Bruinse HW, Helmerhorst FM, Vermeiden JP, Willemsen WN, Visser GH (2000) Obstetric outcome of twin pregnancies after in-vitro fertilization: a matched control study in four Dutch university hospitals. Hum Reprod (Oxford, England) 15(4):935\u2013940. https:\/\/doi.org\/10.1093\/humrep\/15.4.935","journal-title":"Hum Reprod (Oxford, England)"},{"issue":"1","key":"3223_CR30","doi-asserted-by":"publisher","first-page":"50","DOI":"10.1097\/AOG.0b013e31823d7b06","volume":"119","author":"FM Breathnach","year":"2012","unstructured":"Breathnach FM, McAuliffe FM, Geary M, Daly S, Higgins JR, Dornan J, Morrison JJ, Burke G, Higgins S, Dicker P, Manning F, Carroll S, Malone FD (2012) Optimum timing for planned delivery of uncomplicated monochorionic and dichorionic twin pregnancies. Obstet Gynecol 119(1):50\u201359. https:\/\/doi.org\/10.1097\/AOG.0b013e31823d7b06","journal-title":"Obstet Gynecol"},{"key":"3223_CR31","doi-asserted-by":"publisher","first-page":"d5714","DOI":"10.1136\/bmj.d5714","volume":"343","author":"C Visintin","year":"2011","unstructured":"Visintin C, Mugglestone MA, James D, Kilby MD (2011) Antenatal care for twin and triplet pregnancies: summary of NICE guidance. BMJ (Clinical research ed) 343:d5714. https:\/\/doi.org\/10.1136\/bmj.d5714","journal-title":"BMJ (Clinical research ed)"},{"key":"3223_CR32","volume-title":"Sample size calculations in clinical research","author":"S-C Chow","year":"2008","unstructured":"Chow S-C, Shao J, Wang H (2008) Sample size calculations in clinical research, 2nd edn. Chapman & Hall\/CRC, New York","edition":"2"},{"issue":"1","key":"3223_CR33","doi-asserted-by":"publisher","first-page":"136","DOI":"10.1111\/bmsp.12147","volume":"72","author":"G Shieh","year":"2019","unstructured":"Shieh G (2019) Effect size, statistical power, and sample size for assessing interactions between categorical and continuous variables. Br J Math Stat Psychol 72(1):136\u2013154. https:\/\/doi.org\/10.1111\/bmsp.12147","journal-title":"Br J Math Stat Psychol"},{"issue":"5","key":"3223_CR34","doi-asserted-by":"publisher","first-page":"835","DOI":"10.1016\/j.rbmo.2019.07.005","volume":"39","author":"N Mart\u00edn-Calvo","year":"2019","unstructured":"Mart\u00edn-Calvo N, M\u00ednguez-Alarc\u00f3n L, Gaskins AJ, Nassan FL, Williams PL, Souter I, Hauser R, Chavarro JE (2019) Paternal preconception folate intake in relation to gestational age at delivery and birthweight of newborns conceived through assisted reproduction. Reprod Biomed Online 39(5):835\u2013843. https:\/\/doi.org\/10.1016\/j.rbmo.2019.07.005","journal-title":"Reprod Biomed Online"},{"issue":"5","key":"3223_CR35","doi-asserted-by":"publisher","first-page":"777","DOI":"10.1017\/s0007114509288994","volume":"102","author":"S Timmermans","year":"2009","unstructured":"Timmermans S, Jaddoe VW, Hofman A, Steegers-Theunissen RP, Steegers EA (2009) Periconception folic acid supplementation, fetal growth and the risks of low birth weight and preterm birth: the Generation R Study. Br J Nutr 102(5):777\u2013785. https:\/\/doi.org\/10.1017\/s0007114509288994","journal-title":"Br J Nutr"},{"issue":"10","key":"3223_CR36","doi-asserted-by":"publisher","first-page":"747","DOI":"10.1055\/s-0031-1280855","volume":"28","author":"GM Shaw","year":"2011","unstructured":"Shaw GM, Carmichael SL, Yang W, Siega-Riz AM (2011) Periconceptional intake of folic acid and food folate and risks of preterm delivery. Am J Perinatol 28(10):747\u2013752. https:\/\/doi.org\/10.1055\/s-0031-1280855","journal-title":"Am J Perinatol"},{"issue":"28","key":"3223_CR37","first-page":"220","volume":"3","author":"MA Victoria","year":"2006","unstructured":"Victoria MA (2006) Pregnancy outcomes after assisted reproductive technology. J Obstetr Gynaecol Canada JOGC J d\u2019obstetriq Gynecol Can JOGC 3(28):220\u2013233","journal-title":"J Obstetr Gynaecol Canada JOGC J d'obstetriq Gynecol Can JOGC"},{"issue":"71","key":"3223_CR38","first-page":"237","volume":"3","author":"Y Lb","year":"2010","unstructured":"Lb Y (2010) Epigenetics, genomic imprinting and assisted reproductive technology. Ann Endocrinol 3(71):237\u2013238","journal-title":"Ann Endocrinol"},{"issue":"3","key":"3223_CR39","first-page":"384","volume":"31","author":"J Florjanski","year":"2010","unstructured":"Florjanski J, Zimmer M, Borowiec Z, Pomorski M, Filipowski H (2010) Complication rates in the second and third trimester of spontaneous twin pregnancies and twin pregnancies after in vitro fertilization. Neuro Endocrinol Lett 31(3):384\u2013389","journal-title":"Neuro Endocrinol Lett"},{"issue":"5","key":"3223_CR40","doi-asserted-by":"publisher","first-page":"1180","DOI":"10.1016\/j.fertnstert.2015.12.131","volume":"105","author":"JB Qin","year":"2016","unstructured":"Qin JB, Wang H, Sheng X, Xie Q, Gao S (2016) Assisted reproductive technology and risk of adverse obstetric outcomes in dichorionic twin pregnancies: a systematic review and meta-analysis. Fertil Steril 105(5):1180\u20131192. https:\/\/doi.org\/10.1016\/j.fertnstert.2015.12.131","journal-title":"Fertil Steril"},{"issue":"10132","key":"3223_CR41","doi-asserted-by":"publisher","first-page":"1830","DOI":"10.1016\/s0140-6736(18)30311-8","volume":"391","author":"J Stephenson","year":"2018","unstructured":"Stephenson J, Heslehurst N, Hall J, Schoenaker D, Hutchinson J, Cade JE, Poston L, Barrett G, Crozier SR, Barker M, Kumaran K, Yajnik CS, Baird J, Mishra GD (2018) Before the beginning: nutrition and lifestyle in the preconception period and its importance for future health. Lancet (London, England) 391(10132):1830\u20131841. https:\/\/doi.org\/10.1016\/s0140-6736(18)30311-8","journal-title":"Lancet (London, England)"},{"issue":"10132","key":"3223_CR42","doi-asserted-by":"publisher","first-page":"1853","DOI":"10.1016\/s0140-6736(18)30313-1","volume":"391","author":"M Barker","year":"2018","unstructured":"Barker M, Dombrowski SU, Colbourn T, Fall CHD, Kriznik NM, Lawrence WT, Norris SA, Ngaiza G, Patel D, Skordis-Worrall J, Sniehotta FF, Steegers-Theunissen R, Vogel C, Woods-Townsend K, Stephenson J (2018) Intervention strategies to improve nutrition and health behaviours before conception. Lancet (London, England) 391(10132):1853\u20131864. https:\/\/doi.org\/10.1016\/s0140-6736(18)30313-1","journal-title":"Lancet (London, England)"},{"issue":"6","key":"3223_CR43","doi-asserted-by":"publisher","first-page":"1851","DOI":"10.1016\/j.ajog.2004.07.076","volume":"191","author":"AM Siega-Riz","year":"2004","unstructured":"Siega-Riz AM, Savitz DA, Zeisel SH, Thorp JM, Herring A (2004) Second trimester folate status and preterm birth. Am J Obstet Gynecol 191(6):1851\u20131857. https:\/\/doi.org\/10.1016\/j.ajog.2004.07.076","journal-title":"Am J Obstet Gynecol"},{"issue":"22","key":"3223_CR44","doi-asserted-by":"publisher","first-page":"2693","DOI":"10.1001\/jama.1993.03510220049033","volume":"270","author":"J Selhub","year":"1993","unstructured":"Selhub J, Jacques PF, Wilson PW, Rush D, Rosenberg IH (1993) Vitamin status and intake as primary determinants of homocysteinemia in an elderly population. JAMA 270(22):2693\u20132698. https:\/\/doi.org\/10.1001\/jama.1993.03510220049033","journal-title":"JAMA"},{"issue":"6","key":"3223_CR45","doi-asserted-by":"publisher","first-page":"785","DOI":"10.1111\/j.1471-0528.2000.tb13341.x","volume":"107","author":"EF van der Molen","year":"2000","unstructured":"van der Molen EF, Verbruggen B, Nov\u00e1kov\u00e1 I, Eskes TK, Monnens LA, Blom HJ (2000) Hyperhomocysteinemia and other thrombotic risk factors in women with placental vasculopathy. BJOG 107(6):785\u2013791. https:\/\/doi.org\/10.1111\/j.1471-0528.2000.tb13341.x","journal-title":"BJOG"},{"issue":"20","key":"3223_CR46","doi-asserted-by":"publisher","first-page":"1500","DOI":"10.1056\/nejm200005183422007","volume":"342","author":"RL Goldenberg","year":"2000","unstructured":"Goldenberg RL, Hauth JC, Andrews WW (2000) Intrauterine infection and preterm delivery. N Engl J Med 342(20):1500\u20131507. https:\/\/doi.org\/10.1056\/nejm200005183422007","journal-title":"N Engl J Med"},{"issue":"9606","key":"3223_CR47","doi-asserted-by":"publisher","first-page":"75","DOI":"10.1016\/s0140-6736(08)60074-4","volume":"371","author":"RL Goldenberg","year":"2008","unstructured":"Goldenberg RL, Culhane JF, Iams JD, Romero R (2008) Epidemiology and causes of preterm birth. Lancet (London, England) 371(9606):75\u201384. https:\/\/doi.org\/10.1016\/s0140-6736(08)60074-4","journal-title":"Lancet (London, England)"},{"issue":"3","key":"3223_CR48","doi-asserted-by":"publisher","first-page":"350","DOI":"10.1038\/ejcn.2010.267","volume":"65","author":"H Kim","year":"2011","unstructured":"Kim H, Hwang JY, Ha EH, Park H, Ha M, Lee SJ, Hong YC, Chang N (2011) Association of maternal folate nutrition and serum C-reactive protein concentrations with gestational age at delivery. Eur J Clin Nutr 65(3):350\u2013356. https:\/\/doi.org\/10.1038\/ejcn.2010.267","journal-title":"Eur J Clin Nutr"},{"issue":"12","key":"3223_CR49","doi-asserted-by":"publisher","first-page":"e82713","DOI":"10.1371\/journal.pone.0082713","volume":"8","author":"M Zhao","year":"2013","unstructured":"Zhao M, Chen YH, Dong XT, Zhou J, Chen X, Wang H, Wu SX, Xia MZ, Zhang C, Xu DX (2013) Folic acid protects against lipopolysaccharide-induced preterm delivery and intrauterine growth restriction through its anti-inflammatory effect in mice. PLoS ONE 8(12):e82713. https:\/\/doi.org\/10.1371\/journal.pone.0082713","journal-title":"PLoS ONE"},{"issue":"1","key":"3223_CR50","doi-asserted-by":"publisher","first-page":"31","DOI":"10.1016\/0028-2243(95)02150-q","volume":"61","author":"HW Bruinse","year":"1995","unstructured":"Bruinse HW, van den Berg H (1995) Changes of some vitamin levels during and after normal pregnancy. Eur J Obstet Gynecol Reprod Biol 61(1):31\u201337. https:\/\/doi.org\/10.1016\/0028-2243(95)02150-q","journal-title":"Eur J Obstet Gynecol Reprod Biol"},{"issue":"53","key":"3223_CR51","doi-asserted-by":"publisher","first-page":"55008","DOI":"10.1074\/jbc.M410818200","volume":"279","author":"HF Nijhout","year":"2004","unstructured":"Nijhout HF, Reed MC, Budu P, Ulrich CM (2004) A mathematical model of the folate cycle: new insights into folate homeostasis. J Biol Chem 279(53):55008\u201355016. https:\/\/doi.org\/10.1074\/jbc.M410818200","journal-title":"J Biol Chem"},{"issue":"9298","key":"3223_CR52","doi-asserted-by":"publisher","first-page":"2069","DOI":"10.1016\/s0140-6736(01)07104-5","volume":"358","author":"NJ Wald","year":"2001","unstructured":"Wald NJ, Law MR, Morris JK, Wald DS (2001) Quantifying the effect of folic acid. Lancet (London, England) 358(9298):2069\u20132073. https:\/\/doi.org\/10.1016\/s0140-6736(01)07104-5","journal-title":"Lancet (London, England)"},{"issue":"2","key":"3223_CR53","doi-asserted-by":"publisher","first-page":"113","DOI":"10.1016\/j.siny.2015.12.010","volume":"21","author":"F Fuchs","year":"2016","unstructured":"Fuchs F, Senat MV (2016) Multiple gestations and preterm birth. Semin Fetal Neonatal Med 21(2):113\u2013120. https:\/\/doi.org\/10.1016\/j.siny.2015.12.010","journal-title":"Semin Fetal Neonatal Med"},{"issue":"4","key":"3223_CR54","doi-asserted-by":"publisher","first-page":"741","DOI":"10.1542\/peds.2013-1131","volume":"132","author":"A Kugelman","year":"2013","unstructured":"Kugelman A, Colin AA (2013) Late preterm infants: near term but still in a critical developmental time period. Pediatrics 132(4):741\u2013751. https:\/\/doi.org\/10.1542\/peds.2013-1131","journal-title":"Pediatrics"},{"key":"3223_CR55","doi-asserted-by":"publisher","DOI":"10.17226\/11622","volume-title":"Preterm birth: causes, consequences, and prevention","author":"Institute of Medicine Committee on Understanding Premature B, Assuring Healthy O","year":"2007","unstructured":"Institute of Medicine Committee on Understanding Premature B, Assuring Healthy O (2007) The National Academies Collection: reports funded by National Institutes of Health. In: Behrman RE, Butler AS (eds) Preterm birth: causes, consequences, and prevention. National Academies Press (US), Washington DC. https:\/\/doi.org\/10.17226\/11622"},{"issue":"8","key":"3223_CR56","doi-asserted-by":"publisher","first-page":"876","DOI":"10.1016\/s1473-3099(16)00154-7","volume":"16","author":"AC Seale","year":"2016","unstructured":"Seale AC (2016) Every day and every gram counts at birth. Lancet Infect Dis 16(8):876\u2013877. https:\/\/doi.org\/10.1016\/s1473-3099(16)00154-7","journal-title":"Lancet Infect Dis"},{"issue":"8","key":"3223_CR57","doi-asserted-by":"publisher","first-page":"952","DOI":"10.1016\/s1473-3099(16)00150-x","volume":"16","author":"JE Miller","year":"2016","unstructured":"Miller JE, Hammond GC, Strunk T, Moore HC, Leonard H, Carter KW, Bhutta Z, Stanley F, de Klerk N, Burgner DP (2016) Association of gestational age and growth measures at birth with infection-related admissions to hospital throughout childhood: a population-based, data-linkage study from Western Australia. Lancet Infect Dis 16(8):952\u2013961. https:\/\/doi.org\/10.1016\/s1473-3099(16)00150-x","journal-title":"Lancet Infect Dis"},{"issue":"5","key":"3223_CR58","doi-asserted-by":"publisher","first-page":"e2214379","DOI":"10.1001\/jamanetworkopen.2022.14379","volume":"5","author":"Y Yoshida-Montezuma","year":"2022","unstructured":"Yoshida-Montezuma Y, Sivapathasundaram B, Brown HK, Keown-Stoneman C, de Souza RJ, To T, Borkhoff CM, Birken CS, Maguire JL, Anderson LN (2022) Association of late preterm birth and size for gestational age with cardiometabolic risk in childhood. JAMA Netw Open 5(5):e2214379. https:\/\/doi.org\/10.1001\/jamanetworkopen.2022.14379","journal-title":"JAMA Netw Open"},{"issue":"3","key":"3223_CR59","doi-asserted-by":"publisher","first-page":"431","DOI":"10.1016\/j.reprotox.2006.02.003","volume":"22","author":"A Ren","year":"2006","unstructured":"Ren A, Zhang L, Li Z, Hao L, Tian Y, Li Z (2006) Awareness and use of folic acid, and blood folate concentrations among pregnant women in northern China\u2014an area with a high prevalence of neural tube defects. Reprod Toxicol (Elmsford, NY) 22(3):431\u2013436. https:\/\/doi.org\/10.1016\/j.reprotox.2006.02.003","journal-title":"Reprod Toxicol (Elmsford, NY)"},{"issue":"2","key":"3223_CR60","doi-asserted-by":"publisher","first-page":"104","DOI":"10.1111\/j.1740-8709.2008.00172.x","volume":"5","author":"Y Zhao","year":"2009","unstructured":"Zhao Y, Hao L, Zhang L, Tian Y, Cao Y, Xia H, Deng Y, Wang T, Yu M, Li Z (2009) Plasma folate status and dietary folate intake among Chinese women of childbearing age. Matern Child Nutr 5(2):104\u2013116. https:\/\/doi.org\/10.1111\/j.1740-8709.2008.00172.x","journal-title":"Matern Child Nutr"},{"issue":"4","key":"3223_CR61","doi-asserted-by":"publisher","first-page":"582","DOI":"10.1017\/s1368980014000950","volume":"18","author":"J Liu","year":"2015","unstructured":"Liu J, Jin L, Meng Q, Gao L, Zhang L, Li Z, Ren A (2015) Changes in folic acid supplementation behaviour among women of reproductive age after the implementation of a massive supplementation programme in China. Public Health Nutr 18(4):582\u2013588. https:\/\/doi.org\/10.1017\/s1368980014000950","journal-title":"Public Health Nutr"},{"issue":"3\u20134","key":"3223_CR62","doi-asserted-by":"publisher","first-page":"338","DOI":"10.1016\/j.ypmed.2010.07.015","volume":"51","author":"Z Zeng","year":"2010","unstructured":"Zeng Z, Zhu J (2010) Low folic acid supplement intake rate among women in northern China with a high-prevalence of neural tube defects, 2008. Prev Med 51(3\u20134):338\u2013339. https:\/\/doi.org\/10.1016\/j.ypmed.2010.07.015","journal-title":"Prev Med"},{"issue":"1","key":"3223_CR63","doi-asserted-by":"publisher","first-page":"49","DOI":"10.1016\/j.ejogrb.2009.03.020","volume":"145","author":"E Paulik","year":"2009","unstructured":"Paulik E, Cs\u00e1sz\u00e1r J, Kozinszky Z, Nagymajt\u00e9nyi L (2009) Preconceptional and prenatal predictors of folic acid intake in Hungarian pregnant women. Eur J Obstet Gynecol Reprod Biol 145(1):49\u201352. https:\/\/doi.org\/10.1016\/j.ejogrb.2009.03.020","journal-title":"Eur J Obstet Gynecol Reprod Biol"},{"issue":"1","key":"3223_CR64","doi-asserted-by":"publisher","first-page":"90","DOI":"10.1017\/s0007114517003270","volume":"119","author":"L B\u00e4rebring","year":"2018","unstructured":"B\u00e4rebring L, Mullally D, Glantz A, Elllis J, Hulth\u00e9n L, Jagner \u00c5, Bullarbo M, Winkvist A, Augustin H (2018) Sociodemographic factors associated with dietary supplement use in early pregnancy in a Swedish cohort. Br J Nutr 119(1):90\u201395. https:\/\/doi.org\/10.1017\/s0007114517003270","journal-title":"Br J Nutr"}],"container-title":["European Journal of Nutrition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00394-023-03223-8.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00394-023-03223-8\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00394-023-03223-8.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,1,19]],"date-time":"2024-01-19T16:04:16Z","timestamp":1705680256000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00394-023-03223-8"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,9,21]]},"references-count":64,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2024,2]]}},"alternative-id":["3223"],"URL":"https:\/\/doi.org\/10.1007\/s00394-023-03223-8","relation":{},"ISSN":["1436-6207","1436-6215"],"issn-type":[{"value":"1436-6207","type":"print"},{"value":"1436-6215","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,9,21]]},"assertion":[{"value":"28 August 2022","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"24 July 2023","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"21 September 2023","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors have no competing interests to declare that are relevant to the content of this article.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}]}}