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Role of Marital Status in the Association between Prepregnancy Body Mass Index and Breastfeeding Duration.
Womens Health Issues 2016 Jul-Aug; 26(4):468-75WH

Abstract

BACKGROUND

In the United States, breastfeeding rates fail to meet national guidelines. Given the rising prevalence of obesity and births to unmarried women, this study explores if the association between prepregnancy body mass index (BMI) and breastfeeding duration differs by marital status.

METHODS

Data from the 2009-2011 Pregnancy Assessment Monitoring System were analyzed. The sample included women who had live singleton births in the United States and who reported information to calculate BMI and breastfeeding duration (n = 93,106). Breastfeeding duration was categorized as never breastfed, breastfed for 8 weeks or less, and breastfed for more than 8 weeks. BMI was categorized as underweight (<18.5 kg/m(2)), normal weight (18.5-24.9 kg/m(2)), overweight (25.0-29.9 (kg/m(2)), or obese (30.0 + kg/m(2)). Marital status was categorized as married or not married. There was a significant interaction between marital status and prepregnancy BMI (p = .028). Data were stratified by marital status and multinomial logistic regression was conducted adjusting for confounding factors.

RESULTS

Approximately one-half of women were of normal weight before pregnancy (50.4%); 24.1% were overweight, 21.2% were obese, and 4.3% were underweight. Among married women, the odds of never breastfeeding and breastfeeding for 8 weeks or less was greater among overweight (adjusted odds ratio [AOR], 1.23 [95% confidence interval {CI}, 1.10-1.38]; AOR, 1.36 [95% CI, 1.24-1.49]) and obese women (AOR, 1.72 [95% CI, 1.53-1.93]; AOR, 1.95 [95% CI, 1.77-2.15]) compared with normal weight women who breastfed for more than 8 weeks. In contrast, among unmarried women, no association was observed among overweight women and the association was attenuated among obese women (AOR, 1.38 [95% CI, 1.21-1.58]; AOR, 1.43 [95% CI, 1.27-1.62]).

CONCLUSION

Providers and public health practitioners should be aware of the influence of marital status in the association between prepregnancy BMI and breastfeeding duration. The role of obesity and marital status should be considered in designing breastfeeding promotion interventions.

Authors+Show Affiliations

Department of Family Medicine and Population Health, Division of Epidemiology, Virginia Commonwealth University, School of Medicine, Richmond, Virginia. Electronic address: swmasho@vcu.edu.Department of Family Medicine and Population Health, Division of Epidemiology, Virginia Commonwealth University, School of Medicine, Richmond, Virginia.Department of Family Medicine and Population Health, Division of Epidemiology, Virginia Commonwealth University, School of Medicine, Richmond, Virginia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27365287

Citation

Masho, Saba W., et al. "Role of Marital Status in the Association Between Prepregnancy Body Mass Index and Breastfeeding Duration." Women's Health Issues : Official Publication of the Jacobs Institute of Women's Health, vol. 26, no. 4, 2016, pp. 468-75.
Masho SW, Morris MR, Wallenborn JT. Role of Marital Status in the Association between Prepregnancy Body Mass Index and Breastfeeding Duration. Womens Health Issues. 2016;26(4):468-75.
Masho, S. W., Morris, M. R., & Wallenborn, J. T. (2016). Role of Marital Status in the Association between Prepregnancy Body Mass Index and Breastfeeding Duration. Women's Health Issues : Official Publication of the Jacobs Institute of Women's Health, 26(4), pp. 468-75. doi:10.1016/j.whi.2016.05.004.
Masho SW, Morris MR, Wallenborn JT. Role of Marital Status in the Association Between Prepregnancy Body Mass Index and Breastfeeding Duration. Womens Health Issues. 2016;26(4):468-75. PubMed PMID: 27365287.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Role of Marital Status in the Association between Prepregnancy Body Mass Index and Breastfeeding Duration. AU - Masho,Saba W, AU - Morris,Michelle R, AU - Wallenborn,Jordyn T, Y1 - 2016/06/28/ PY - 2015/11/25/received PY - 2016/05/11/revised PY - 2016/05/16/accepted PY - 2016/7/2/entrez PY - 2016/7/2/pubmed PY - 2017/8/8/medline SP - 468 EP - 75 JF - Women's health issues : official publication of the Jacobs Institute of Women's Health JO - Womens Health Issues VL - 26 IS - 4 N2 - BACKGROUND: In the United States, breastfeeding rates fail to meet national guidelines. Given the rising prevalence of obesity and births to unmarried women, this study explores if the association between prepregnancy body mass index (BMI) and breastfeeding duration differs by marital status. METHODS: Data from the 2009-2011 Pregnancy Assessment Monitoring System were analyzed. The sample included women who had live singleton births in the United States and who reported information to calculate BMI and breastfeeding duration (n = 93,106). Breastfeeding duration was categorized as never breastfed, breastfed for 8 weeks or less, and breastfed for more than 8 weeks. BMI was categorized as underweight (<18.5 kg/m(2)), normal weight (18.5-24.9 kg/m(2)), overweight (25.0-29.9 (kg/m(2)), or obese (30.0 + kg/m(2)). Marital status was categorized as married or not married. There was a significant interaction between marital status and prepregnancy BMI (p = .028). Data were stratified by marital status and multinomial logistic regression was conducted adjusting for confounding factors. RESULTS: Approximately one-half of women were of normal weight before pregnancy (50.4%); 24.1% were overweight, 21.2% were obese, and 4.3% were underweight. Among married women, the odds of never breastfeeding and breastfeeding for 8 weeks or less was greater among overweight (adjusted odds ratio [AOR], 1.23 [95% confidence interval {CI}, 1.10-1.38]; AOR, 1.36 [95% CI, 1.24-1.49]) and obese women (AOR, 1.72 [95% CI, 1.53-1.93]; AOR, 1.95 [95% CI, 1.77-2.15]) compared with normal weight women who breastfed for more than 8 weeks. In contrast, among unmarried women, no association was observed among overweight women and the association was attenuated among obese women (AOR, 1.38 [95% CI, 1.21-1.58]; AOR, 1.43 [95% CI, 1.27-1.62]). CONCLUSION: Providers and public health practitioners should be aware of the influence of marital status in the association between prepregnancy BMI and breastfeeding duration. The role of obesity and marital status should be considered in designing breastfeeding promotion interventions. SN - 1878-4321 UR - https://www.unboundmedicine.com/medline/citation/27365287/Role_of_Marital_Status_in_the_Association_between_Prepregnancy_Body_Mass_Index_and_Breastfeeding_Duration_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1049-3867(16)30039-1 DB - PRIME DP - Unbound Medicine ER -