TY - JOUR
T1 - Factors associated with duration of breastfeeding in women giving birth for the first time
AU - for the nuMoM2b study and the nuMoM2b Heart Health Study
AU - Haas, David M.
AU - Yang, Ziyi
AU - Parker, Corette B.
AU - Chung, Judith
AU - Parry, Samuel
AU - Grobman, William A.
AU - Mercer, Brian M.
AU - Simhan, Hyagriv N.
AU - Silver, Robert M.
AU - Wapner, Ronald J.
AU - Saade, George R.
AU - Greenland, Philip
AU - Merz, Noel Bairey
AU - Reddy, Uma M.
AU - Pemberton, Victoria L.
N1 - Funding Information:
This study was supported by grant funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD): U10 HD063036, RTI International; U10 HD063072, Case Western Reserve University; U10 HD063047, Columbia University; U10 HD063037, Indiana University; U10 HD063041, University of Pittsburgh; U10 HD063020, Northwestern University; U10 HD063046, University of California Irvine; U10 HD063048, University of Pennsylvania; and U10 HD063053, University of Utah. This study was also supported by funding from the National Heart, Lung, and Blood Institute (NHLBI): U10-HL119991, RTI International; U10-HL119989, Case Western Reserve University; U10-HL120034, Columbia University; U10-HL119990, Indiana University; U10-HL120006, University of Pittsburgh; U10-HL119992, Northwestern University; U10-HL120019, University of California Irvine; U10-HL119993, University of Pennsylvania; and U10-HL120018, University of Utah. In addition, support was provided by respective Clinical and Translational Science Institutes to Indiana University (UL1TR001108) and University of California Irvine (UL1TR000153). This content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH. As a cooperative agreement funding mechanism, the NICDH Program Officer was involved in the design of the study but not in the performing of the study, collection of data, or this analysis. NIH employees who are authors on this manuscript were not involved in the primary writing but were involved in the final editing and do satisfy authorship requirements.
Publisher Copyright:
© 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - Objective: To examine maternal, psychosocial, and pregnancy factors associated with breastfeeding for at least 6 months in those giving birth for the first time. Methods: We performed a planned secondary analysis of an observational cohort study of 5249 women giving birth for the first time. Women were contacted at least 6 months after delivery and provided information regarding breastfeeding initiation, duration, and exclusivity. Maternal demographics, psychosocial measures, and delivery methods were compared by breastfeeding groups. Results: 4712 (89.8%) of the women breastfed at some point, with 2739 (58.2%) breastfeeding for at least 6 months. Of those who breastfed, 1161 (24.7% of the entire cohort), breastfed exclusively for at least 6 months. In the multivariable model among those who ever breastfed, not smoking in the month prior to delivery (adjusted odds ratio [aOR] 2.04, 95%CI 1.19–3.45), having a Master’s degree of higher (aOR 1.89, 95%CI 1.51–2.36), having a planned pregnancy (aOR 1.48, 95%CI 1.27–1.73), older age (aOR 1.02, 95% CI, 1.01–1.04), lower BMI (aOR 0.96 95% CI 0.95–0.97), and having less anxiety measured during pregnancy (aOR 0.990, 95%CI 0.983–0.998) were associated with breastfeeding for at least 6 months. Compared to non-Hispanic White women, Hispanic women, while being more likely to breastfeed initially (aOR 1.40, 95%CI 1.02–1.92), were less likely to breastfeed for 6 months (aOR 0.72, 95%CI 0.59–0.88). While non-Hispanic Black women were less likely than non-Hispanic White women to initiate breastfeeding (aOR 0.68, 95%CI 0.51–0.90), the odds of non-Hispanic Black women of continuing to breastfeed for at least 6 months was similar to non-Hispanic White women (aOR 0.92, 95%CI 0.71–1.19). Conclusions: In this cohort of women giving birth for the first time, duration of breastfeeding was associated with several characteristics which highlight groups at greater risk of not breastfeeding as long as currently recommended. Trial registration: NCT01322529 (nuMoM2b) and NCT02231398 (nuMoM2b-Heart Health).
AB - Objective: To examine maternal, psychosocial, and pregnancy factors associated with breastfeeding for at least 6 months in those giving birth for the first time. Methods: We performed a planned secondary analysis of an observational cohort study of 5249 women giving birth for the first time. Women were contacted at least 6 months after delivery and provided information regarding breastfeeding initiation, duration, and exclusivity. Maternal demographics, psychosocial measures, and delivery methods were compared by breastfeeding groups. Results: 4712 (89.8%) of the women breastfed at some point, with 2739 (58.2%) breastfeeding for at least 6 months. Of those who breastfed, 1161 (24.7% of the entire cohort), breastfed exclusively for at least 6 months. In the multivariable model among those who ever breastfed, not smoking in the month prior to delivery (adjusted odds ratio [aOR] 2.04, 95%CI 1.19–3.45), having a Master’s degree of higher (aOR 1.89, 95%CI 1.51–2.36), having a planned pregnancy (aOR 1.48, 95%CI 1.27–1.73), older age (aOR 1.02, 95% CI, 1.01–1.04), lower BMI (aOR 0.96 95% CI 0.95–0.97), and having less anxiety measured during pregnancy (aOR 0.990, 95%CI 0.983–0.998) were associated with breastfeeding for at least 6 months. Compared to non-Hispanic White women, Hispanic women, while being more likely to breastfeed initially (aOR 1.40, 95%CI 1.02–1.92), were less likely to breastfeed for 6 months (aOR 0.72, 95%CI 0.59–0.88). While non-Hispanic Black women were less likely than non-Hispanic White women to initiate breastfeeding (aOR 0.68, 95%CI 0.51–0.90), the odds of non-Hispanic Black women of continuing to breastfeed for at least 6 months was similar to non-Hispanic White women (aOR 0.92, 95%CI 0.71–1.19). Conclusions: In this cohort of women giving birth for the first time, duration of breastfeeding was associated with several characteristics which highlight groups at greater risk of not breastfeeding as long as currently recommended. Trial registration: NCT01322529 (nuMoM2b) and NCT02231398 (nuMoM2b-Heart Health).
KW - Breastfeeding
KW - Longevity
KW - Nulliparous patients
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U2 - 10.1186/s12884-022-05038-7
DO - 10.1186/s12884-022-05038-7
M3 - Article
C2 - 36138368
AN - SCOPUS:85138334591
SN - 1471-2393
VL - 22
JO - BMC Pregnancy and Childbirth
JF - BMC Pregnancy and Childbirth
IS - 1
M1 - 722
ER -