正常孕妇体重增加的监测模式

Weight Gain Pattern in Normal Pregnant Women

目的确定正常孕妇孕期体重增加的模式，为孕期保健提供参考。方法收集１９９５年１月１日至１９９５年１２月３１日１５６２例孕产妇的资料，并对无妊娠合并症及新生儿出生体重在２５００～３９９９ｇ的１１０５９例次产前检查资料进行分析。结果产妇平均年龄２６．４９±３．０２岁；平均身高１５８．６９±４．８５ｃｍ。根据孕前体质指数（ＢＭＩ）可将孕妇分为低ＢＭＩ（＜１６．７５）、正常ＢＭＩ（１６．７５～２３．７１）及高ＢＭＩ（＞２３．７１）３类。各类孕妇的ＢＭＩ随孕周增加而递增，尤以正常ＢＭＩ孕妇最为明显；３类孕妇孕期ＢＭＩ增加分别为８．０７、５．３７、３．８２。

Objective The purpose of this study was to determine the maternal weight gain pattern of normal pregnant women. Methods One thousand five hundred and sixty two (1 562) women, with 11 059 records, received prenatal care and had their babies delivered at the Second Hospital of West China University of Medical Sciences during the period of Jan. 1￣Dec. 31, 1995. All the women without complications and with their babies weighted between 2 500￣3 999 g were included, and data was analyzed. Results The average age was 26.49±3.02 and height 158.69±4.85 cm. The women were divided into three categories according to their prepregnant body mass index(BMI): underweight (<16.75), normal weight (16.75￣23.71) and overweight (>23.71). The BMIs of each categories increased as gestational week approached to the term, with total BMI increase as 8.07, 5.37, 3.82 for underweight, normal weight and overweight, respectively. Conclusion BMI, calculated with weight and height, is more accurate to assess maternal weight gain than weight alone do, and above results and accompanied charts could be used to monitor maternal weight gain as a reference.