Rock CL. Multivitamin-multimineral supplements: who uses them? Am J Clin Nutr. 2007;85(1):277S–9.
CAS
PubMed
Google Scholar
Gahche J, Bailey R, Burt V, et al. Dietary supplement use among U.S. adults has increased since NHANES III (1988–1994). NCHS Data Brief. 2011;61:1–8.
Google Scholar
Sullivan KM, Ford ES, Azrak MF, Mokdad AH. Multivitamin use in pregnant and nonpregnant women: results from the behavioral risk factor surveillance system. Public Health Rep. 2009;124(3):384–90.
Article
PubMed
PubMed Central
Google Scholar
Centers for Disease Control and Prevention. Recommendations for the use of folic acid to reduce the number of cases of spina bifida and other neural tube defects. MMWR Morb Mortal Wkly Rep. 1992;41:1–7.
Google Scholar
Centers for Disease Control and Prevention. Use of supplements containing folic acid among women of childbearing age--United States. MMWR Morb Mortal Wkly Rep. 2008;57:5–8.
Google Scholar
Centers for Disease Control and Prevention. Preconception health indicators among women--Texas, 2002–2010. MMWR Morb Mortal Wkly Rep. 2012;61:550–5.
Google Scholar
Crider K, Bailey L, Berry R. Folic acid food fortification- its history, effect, concerns, and future directions. Nutrients. 2011;3:370–84.
Article
PubMed
PubMed Central
Google Scholar
Wang M, Wang Z, Gao L, Gong R, Sun X, Zhao Z. Maternal body mass index and the association between folic acid supplements and neural tube defects. Acta Paediatr. 2013;102(9):908–13.
Article
CAS
PubMed
Google Scholar
De-Regil LM, Peña-Rosas JP, Fernández-Gaxiola AC, Rayco-Solon P. Effects and safety of periconceptional oral folate supplementation for preventing birth defects. Cochrane Database Syst Rev. 2015;12:CD007950.
Google Scholar
Chang S, Zeng L, Brouwer ID, Kok FJ, Yan H. Effect of iron deficiency anemia in pregnancy on child mental development in rural China. Pediatrics. 2013;131(3):e755–4763.
Article
PubMed
Google Scholar
Correa A, Botto L, Liu Y, Mulinare J, Erickson JD. Do multivitamin supplements attenuate the risk for diabetes-associated birth defects? Pediatrics. 2003;111(5):1146–51.
PubMed
Google Scholar
Catov JM, Bodnar LM, Olsen J, Olsen S, Nohr EA. Periconceptional multivitamin use and risk of preterm or small-for- gestational- age births in the Danish National Birth Cohort. Am J Clin Nutr. 2011;94(3):906–12.
Article
CAS
PubMed
PubMed Central
Google Scholar
Li Z, Ye R, Zhang L, Li H, Lui J, Ren A. Periconceptional folic acid supplementation and the risk of preterm births in China: a large prospective cohort study. Int J Epidemiol. 2014;43(4):1132–9.
Article
PubMed
PubMed Central
Google Scholar
Ramakrishnan U, Grant FK, Imdad A, Bhutta ZA, Martorell R. Effect of multiple micronutrient versus iron-folate supplementation during pregnancy on intrauterine growth. Nestle Nutr Inst Workshop Ser. 2013;74:53–62.
Article
PubMed
Google Scholar
Bestwick JP, Huttly WJ, Morris JK, Wald NJ. Prevention of neural tube defects: a cross-sectional study of the uptake of folic acid supplementation in nearly half a million women. PLoS One. 2014;9(2):e89354.
Article
PubMed
PubMed Central
Google Scholar
Short VL, Oza-Frank R, Conrey EJ. Preconception health indicators: a comparison between non-Appalachian and Appalachian women. Matern Child Health J. 2012;16(2):238–49.
Article
PubMed
PubMed Central
Google Scholar
Tessema J, Jefferds ME, Cogswell M, Carlton E. Motivators and barriers to prenatal supplement use among minority women in the United States. J Am Diet Assoc. 2009;109(1):102–8.
Article
PubMed
Google Scholar
Mazza D, Chapman A. Improving the uptake of preconception care and periconceptional folate supplementation: what do women think? BMC Public Health. 2010;10(786):1–6.
Google Scholar
Kimmons JE, Blanck HM, Tohill BC, Zhang J, Khan LK. Multivitamin use in relation to self-reported body mass index and weight loss attempts. Med Gen Med. 2006;8(3):3.
Google Scholar
Farah N, Kennedy C, Turner C, O’Dwyer V, Kennelly MM, Turner MJ. Maternal obesity and pre-pregnancy folic acid supplementation. Obesity Facts. 2013;6(2):211–5.
Article
CAS
PubMed
Google Scholar
Case AP, Ramadhani TA, Canfield MA, Beverly L, Wood R. Folic acid supplementation among diabetic, overweight, or obese women of childbearing age. J Obstet Gynecol Neonatal Nurs. 2007;36(4):335–41.
Article
PubMed
Google Scholar
Kimmons JE, Blanck HM, Tohill BC, Zhang J, Khan LK. Associations between body mass index and the prevalence of low micronutrient levels among U.S. adults. Med Gen Med. 2006;8(4):59–69.
Google Scholar
Huber LRB, Toth JL. Obesity and oral contraceptive failure: findings from the 2002 national survey of family growth. Am J Epidemiol. 2007;166(11):1306–11.
Article
Google Scholar
Pregnancy Risk Assessment Monitoring System. Centers for Disease Control and Prevention, Atlanta, GA. 2012. http://www.cdc.gov/prams/researchers.htm. Accessed 20 Jul 2015.
Guelinckx I, Devlieger R, Bogaerts A, Pauwels S, Vansant G. The effect of pre-pregnancy BMI on intention, initiation and duration of breast-feeding. Public Health Nutr. 2012;15(5):840–8.
Article
PubMed
Google Scholar
Kitsantas P, Pawloski LR. Maternal obesity, health status during pregnancy, and breastfeeding initiation and duration. J Matern Fetal Neonatal Med. 2010;23(2):135–41.
Article
PubMed
Google Scholar
World Health Organization. BMI Classification. http://apps.who.int/bmi/index.jsp?introPage=intro_3.html. Updated January 1, 2016. Accessed 21 Jan 2016.
Song Y, Xu Q, Park Y, Hollenbeck A, Schatzkin A, Chen H. Multivitamins, individual vitamin and mineral supplements, and risk of diabetes among older U.S. adults. Diabetes Care. 2011;34(1):108–14.
Article
PubMed
Google Scholar
Jasti S, Siega-Riz A, Cogswell ME, Hartzema AG, Bentley ME. Pill count adherence to prenatal multivitamin/mineral supplement use among low-income women. J Nutr. 2005;135(5):1093–101.
CAS
PubMed
Google Scholar
Weiss LA, Chambers CD. Associations between multivitamin supplement use and alcohol consumption before pregnancy: pregnancy risk assessment monitoring system, 2004 to 2008. Alcohol Clin Exp Res. 2013;37(9):1595–600.
Article
CAS
PubMed
PubMed Central
Google Scholar
Scholl TO, Hediger ML, Bendich A, Schall JI, Smith WK, Krueger PM. Use of multivitamin/mineral prenatal supplements: Influence on the outcome of pregnancy. Am J Epidemiol. 1997;146(2):134–41.
Article
CAS
PubMed
Google Scholar
Backhausen MG, Ekstrand M, Tydén T, et al. Pregnancy planning and lifestyle prior to conception and during early pregnancy among Danish women. Eur J Contracept Reprod Health Care. 2014;19(1):57–65.
Article
PubMed
Google Scholar
Rosenberg KD, Gelow JM, Sandoval AP. Pregnancy intendedness and the use of periconceptional folic acid. Pediatrics. 2003;111(5):1142–5.
PubMed
Google Scholar
Stephenson J, Patel D, Barrett G, et al. How do women prepare for pregnancy? preconception experiences of women attending antenatal services and views of health professionals. PLoS One. 2014;9(7):e103085.
Article
PubMed
PubMed Central
Google Scholar
Garbers S, Chiasson MA. Class III obesity and unwanted pregnancy among women with live births in New York City, 2004–2007. Matern Child Health J. 2013;17(8):1459–67.
Article
PubMed
Google Scholar
Radimer K, Bindewald B, Hughes J, Ervin B, Swanson C, Picciano MF. Dietary supplement use by US adults: data from the National Health and Nutrition Examination Survey, 1999–2000. Am J Epidemiol. 2004;160(4):339–49.
Article
PubMed
Google Scholar
Johnson K, Posner SF, Biermann J, et al. Recommendations to improve preconception health and health care--United States: a report of the CDC/ATSDR preconception care work group and the select panel on preconception care. MMWR Morb Mortal Wkly Rep. 2006;55(RR06):1–23.
Google Scholar
De Nicola F, Giné X. How accurate is recall data: evidence from coastal India. J Dev Econ. 2011;106:52–65.
Article
Google Scholar
Centers for Disease Control and Prevention. Methodology - PRAMS. http://www.cdc.gov/prams/methodology.htm. (accessed November 2014). Updated November 8, 2012. Accessed 21 Jan 2016.