Differences in gestational weight gain between pregnancies before and after maternal bariatric surgery correlate with differences in birth weight but not with scores on the body mass index in early childhood
Berglind, D2; Willmer, M3; Näslund, E3; Tynelius, P3; Sørensen, T I A1; Rasmussen, F3
1 Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospital, The Capital Region of Denmark2 Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.3 unknown
Large maternal gestational weight gain (GWG) is associated with increased birth weight and increased risk of obesity in offspring, but these associations may be confounded by genetic and environmental factors. The aim was to investigate the effects of differences in GWG in all three trimesters on differences in birth weight and in body mass index (BMI) scores at 4 and 6 years of age, within siblings born before and after bariatric surgery.