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Pregnancy outcome according to pre‐pregnancy body mass index and gestational weight gain
Author(s) -
Gesche Joanna,
Nilas Lisbeth
Publication year - 2015
Publication title -
international journal of gynecology and obstetrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 97
eISSN - 1879-3479
pISSN - 0020-7292
DOI - 10.1016/j.ijgo.2014.12.013
Subject(s) - medicine , pregnancy , body mass index , weight gain , obstetrics , gestation , birth weight , obesity , overweight , gestational age , gynecology , body weight , biology , genetics
Objective To assess birth weight in relation to gestational weight gain (GWG) among women who were and were not obese before pregnancy. Methods For a retrospective cohort study, data were obtained for women with a pre‐pregnancy body mass index (BMI, calculated as weight in kilograms divided by the square of height in meters) of at least 30 who had a singleton delivery at a center in Denmark in 2010–2011. Data were also obtained for 455 non‐obese women (BMI 20.0–24.9). GWG was expressed in absolute terms and relative to published recommendations (11–16 kg in non‐obese women; 5–9 kg in obese women). Results A total of 231 obese women were included in analyses. In non‐obese and obese women, fetal weight was highest when GWG was above the recommended amount. Among women who had a GWG in line with the recommendations, mean birth weight was higher among those with a pre‐pregnancy BMI of 35.0–39.9 (3758 ± 410 g) or at least 40 (3671 ± 374 g) than among non‐obese women (3394 ± 453 g; P = 0.0058). Conclusion Birth weight is related to both maternal BMI and GWG. In obese women, adherence to GWG recommendations does not seem to prevent increased birth weights.