Anju E Joham1,2, Natalie Nanayakkara1,2, Sanjeeva Ranasinha1, Sophia Zoungas1,2, Jacqueline Boyle1, Cheryce L Harrison1, Peta Forder3, Deborah Loxton3, Eszter Vanky4,5, Helena J Teede1,2. 1. Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Clayton, Vic., Australia. 2. Diabetes and Vascular Medicine Unit, Monash Health, Clayton, Vic., Australia. 3. Research Centre for Gender, Health and Ageing, University of Newcastle, Callaghan, NSW, Australia. 4. Institute of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim, Norway. 5. Department of Obstetrics and Gynecology, St. Olavs Hospital, University Hospital of Trondheim, Trondheim, Norway.
Abstract
INTRODUCTION: Polycystic ovary syndrome (PCOS) affects 9-21% of reproductive-age women. The relations between PCOS, body mass index (BMI) and breastfeeding are unclear. Our aim was to examine breastfeeding in women with and without PCOS and the relation with BMI. MATERIAL AND METHODS: This is a cross-sectional study set in the general community. Participants are women, aged 31-36 years, from the Australian Longitudinal Study on Women's Health (ALSWH), a large community-based study. Data was analyzed from the first child of respondents to Survey five (2009) reporting at least one live born child. Logistic regression analysis was used to examine factors associated with breastfeeding. The main outcome measures studied were breastfeeding initiation and duration and the main explanatory variables included self-reported PCOS and BMI. RESULTS: Of the 4898 women, 6.5% reported PCOS (95% confidence interval 5.8-7.2%). Median duration of breastfeeding was lower in women reporting PCOS (6 months, range 2-10 months) than in women not reporting PCOS (7 months, range 3-12 months) (p = 0.001). On multivariable regression analysis, there was no association between PCOS and breastfeeding outcomes. However, being overweight or obese was associated with not initiating breastfeeding and with breastfeeding for less than 6 months, after adjusting for confounders. CONCLUSIONS: High BMI is negatively associated with breastfeeding, whereas PCOS status per se does not appear to be related to breastfeeding initiation and duration, after adjusting for BMI.
INTRODUCTION:Polycystic ovary syndrome (PCOS) affects 9-21% of reproductive-age women. The relations between PCOS, body mass index (BMI) and breastfeeding are unclear. Our aim was to examine breastfeeding in women with and without PCOS and the relation with BMI. MATERIAL AND METHODS: This is a cross-sectional study set in the general community. Participants are women, aged 31-36 years, from the Australian Longitudinal Study on Women's Health (ALSWH), a large community-based study. Data was analyzed from the first child of respondents to Survey five (2009) reporting at least one live born child. Logistic regression analysis was used to examine factors associated with breastfeeding. The main outcome measures studied were breastfeeding initiation and duration and the main explanatory variables included self-reported PCOS and BMI. RESULTS: Of the 4898 women, 6.5% reported PCOS (95% confidence interval 5.8-7.2%). Median duration of breastfeeding was lower in women reporting PCOS (6 months, range 2-10 months) than in women not reporting PCOS (7 months, range 3-12 months) (p = 0.001). On multivariable regression analysis, there was no association between PCOS and breastfeeding outcomes. However, being overweight or obese was associated with not initiating breastfeeding and with breastfeeding for less than 6 months, after adjusting for confounders. CONCLUSIONS: High BMI is negatively associated with breastfeeding, whereas PCOS status per se does not appear to be related to breastfeeding initiation and duration, after adjusting for BMI.