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Trends in maternal obesity and associated risks of adverse pregnancy outcomes in a population of Chinese women.
BJOG. 2008 Nov; 115(12):1529-37.BJOG

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 > or = 18.5 kg/m(2) and <23 kg/m(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.

Authors+Show Affiliations

Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, China. tyleung@cuhk.edu.hkNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19035989

Citation

Leung, T Y., et al. "Trends in Maternal Obesity and Associated Risks of Adverse Pregnancy Outcomes in a Population of Chinese Women." BJOG : an International Journal of Obstetrics and Gynaecology, vol. 115, no. 12, 2008, pp. 1529-37.
Leung TY, Leung TN, Sahota DS, et al. Trends in maternal obesity and associated risks of adverse pregnancy outcomes in a population of Chinese women. BJOG. 2008;115(12):1529-37.
Leung, T. Y., Leung, T. N., Sahota, D. S., Chan, O. K., Chan, L. W., Fung, T. Y., & Lau, T. K. (2008). Trends in maternal obesity and associated risks of adverse pregnancy outcomes in a population of Chinese women. BJOG : an International Journal of Obstetrics and Gynaecology, 115(12), 1529-37. https://doi.org/10.1111/j.1471-0528.2008.01931.x
Leung TY, et al. Trends in Maternal Obesity and Associated Risks of Adverse Pregnancy Outcomes in a Population of Chinese Women. BJOG. 2008;115(12):1529-37. PubMed PMID: 19035989.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Trends in maternal obesity and associated risks of adverse pregnancy outcomes in a population of Chinese women. AU - Leung,T Y, AU - Leung,T N, AU - Sahota,D S, AU - Chan,O K, AU - Chan,L W, AU - Fung,T Y, AU - Lau,T K, PY - 2008/11/28/pubmed PY - 2009/1/24/medline PY - 2008/11/28/entrez SP - 1529 EP - 37 JF - BJOG : an international journal of obstetrics and gynaecology JO - BJOG VL - 115 IS - 12 N2 - 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 > or = 18.5 kg/m(2) and <23 kg/m(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. SN - 1471-0528 UR - https://www.unboundmedicine.com/medline/citation/19035989/Trends_in_maternal_obesity_and_associated_risks_of_adverse_pregnancy_outcomes_in_a_population_of_Chinese_women_ L2 - https://doi.org/10.1111/j.1471-0528.2008.01931.x DB - PRIME DP - Unbound Medicine ER -