Trends in maternal obesity and associated risks of adverse pregnancy outcomes in a population of Chinese women
- 13 October 2008
- journal article
- Published by Wiley in BJOG: An International Journal of Obstetrics and Gynaecology
- Vol. 115 (12), 1529-1537
- https://doi.org/10.1111/j.1471-0528.2008.01931.x
Abstract
Objective To assess the effect of increasing body mass index (BMI) on pregnancy outcome in a population of Chinese women. Design A retrospective study. Setting A university teaching hospital. Population Women delivering singleton babies between 1995 and 2005 who sought antenatal care before 20 weeks of gestation. Methods A total of 29 303 women were categorised into six BMI groups according to WHO’s classification. Univariate, multivariate and logistic regression analysis were performed to compare obstetric and perinatal outcomes between BMI groups. Main outcome measures Incidences of caesarean delivery, pre-eclampsia, gestational diabetes, preterm delivery, small for gestational age (SGA) and large for gestational age (LGA), perinatal death, and the respective odd ratios in reference to the normal group with BMI ≥ 18.5 kg/m2 and 2. Results The median BMI increased with increasing maternal age, parity, gestation at the first visit, but decreased with year of delivery (P < 0.001). Concerning the obstetric outcomes, increasing BMI was associated with increasing incidence of caesarean section, pre-eclampsia, gestational diabetes, preterm delivery, LGA, as well as SGA according to customised growth standards (P < 0.001). The odds ratios for most of these adverse outcomes are higher than those reported in Caucasian population. Increasing BMI was not associated with the rate of stillbirth, neonatal death or shoulder dystocia. Conclusion Increasing BMI is associated with increased risks of adverse obstetric outcomes. The impacts of high BMI on pre-eclampsia, gestational diabetes and preterm delivery in Chinese women might be stronger than that in Caucasian. Hence, it may be appropriate to use a lower BMI cutoff for defining overweight in Chinese.Keywords
This publication has 26 references indexed in Scilit:
- Effect of Body Mass Index on pregnancy outcomes in nulliparous women delivering singleton babiesBMC Public Health, 2007
- Defining Obesity Cut Points in a Multiethnic PopulationCirculation, 2007
- Prepregnancy Body Mass Index and the Occurrence of Severe Hypertensive Disorders of PregnancyEpidemiology, 2007
- Maternal Obesity in Early Pregnancy and Risk of Spontaneous and Elective Preterm Deliveries: A Retrospective Cohort StudyAmerican Journal of Public Health, 2007
- Long‐Term Safety and Efficacy of Circumferential Ablation with Pulmonary Vein IsolationJournal of Cardiovascular Electrophysiology, 2006
- The interrelationship between ethnicity and obesity on obstetric outcomesAmerican Journal of Obstetrics and Gynecology, 2005
- Customised birthweight centiles predict SGA pregnancies with perinatal morbidityBJOG: An International Journal of Obstetrics and Gynaecology, 2005
- Obesity-Related Complications in Danish Single Cephalic Term PregnanciesObstetrics & Gynecology, 2005
- Updated gestational age specific birth weight, crown-heel length, and head circumference of Chinese newbornsArchives of Disease in Childhood: Fetal & Neonatal, 2003
- Maternal obesity and pregnancy outcome: a study of 287 213 pregnancies in LondonInternational Journal of Obesity, 2001