期刊
OBSTETRICS AND GYNECOLOGY
卷 104, 期 5, 页码 943-951出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.AOG.0000142713.53197.91
关键词
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资金
- NCRR NIH HHS [RR00046] Funding Source: Medline
- NICHD NIH HHS [HD05798, HD37584, HD28684] Funding Source: Medline
- PHS HHS [S455-16/17, S0807-18/20] Funding Source: Medline
OBJECTIVE: To examine the effect of maternal overweight and obesity on labor progression. METHODS: We analyzed data from 612 nulliparous women witha term pregnancy that participated in the Pregnancy, Infection, and Nutrition Study from 1995 to 2002. The median duration of labor by each centimeter of cervical dilation was computed for normal-weight (body mass index [BMI] 19.8-26.0 kg/m(2)), overweight (BMI 26.1-29.0 kg/m(2)), and obese (BMI > 29.0 kg/m(2)) women and used as a measurement of labor progression. RESULTS: After adjusting for maternal height, labor induction, membrane rupture, oxytocin use, epidural analgesia, net maternal weight gain, and fetal size, the median duration of labor from 4 to 10 cm was significantly longer for both overweight and obese women, compared with normal-weight women (7.5, 7.9, and 6.2 hours, respectively). For overweight women, the prolongation was concentrated around 4-6 cm, whereas for obese women, their labor was significantly slower before 7 cm. CONCLUSION: Labor progression in overweight and obese women was significantly slower than that of normal-weight women before 6 cm of cervical dilation. Given that nearly one half of women of childbearing age are either overweight or obese, it is critical to consider differences in labor progression by maternal prepregnancy BMI before additional interventions are performed. (C) 2004 by The American College of Obstetricians and Gynecologists.
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