Maternal Body Composition, Smoking, and Hyperemesis Gravidarum
Purpose To study associations between maternal prepregnant body mass index (BMI), smoking, and hyperemesis gravidarum (hyperemesis). Methods The sample consisted of 33,467 primiparous women from the Norwegian Mother and Child Cohort Study (1999−2008). Data on hyperemesis, BMI, education, maternal ag...
Saved in:
Published in: | Annals of epidemiology Vol. 20; no. 8; pp. 592 - 598 |
---|---|
Main Authors: | , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
United States
Elsevier Inc
01-08-2010
|
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Purpose To study associations between maternal prepregnant body mass index (BMI), smoking, and hyperemesis gravidarum (hyperemesis). Methods The sample consisted of 33,467 primiparous women from the Norwegian Mother and Child Cohort Study (1999−2008). Data on hyperemesis, BMI, education, maternal age, eating disorders, maternal and paternal smoking habits were obtained from questionnaires. All associations were studied by logistic regression. Results Altogether, 353 (1.1%) women had hyperemesis. Among non-smokers, both underweight and obese women were more likely to develop hyperemesis than normal-weighted women: odds ratio (OR), 2.36; 95% confidence interval (95% CI), 1.43−3.88 and OR, 1.48; 95% CI, 1.00−2.20, respectively. No associations were found among smokers. Women who smoked daily (OR, 0.44; 95% CI, 0.32−0.60) or occasionally (OR, 0.64; 95% CI, 0.44−0.93) had lower risk of hyperemesis than non-smokers. No effect of partner's smoking habits was observed. Conclusions Both underweight and obesity were associated with hyperemesis, but only among non-smokers. Maternal prepregnant smoking reduced the risk of hyperemesis, whereas partner's smoking habits had no effect. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
ISSN: | 1047-2797 1873-2585 |
DOI: | 10.1016/j.annepidem.2010.05.009 |