孕前及不同孕期体质量指数对新生儿体质量的影响

目的:探讨孕前及不同孕期体质量指数(BMI)对新生儿体质量的影响。方法:选取2 260例有完整产检记录并分娩的正常单胎孕妇资料进行回顾性分析。结果:孕前、孕早期体质量超重组及肥胖组的巨大儿发生率明显高于体质量正常组与消瘦组(P<0.01)。孕中、晚期肥胖组巨大儿的发生率最高,而正常组或消瘦组的巨大儿发生率最低,差异均有统计学意义(P<0.01)。结论:孕前及孕期各阶段BMI均与巨大儿的发病率正相关。严格监测孕妇BMI,控制体质量增长在正常范围,有利于防止巨大儿的发生和母婴健康。

Effect of body mass index before and different periods of pregnancy on neonatal body mass

Objective:To investigate the effects of body mass index(BMI) before pregnancy and different periods of pregnancy on neonatal body mass. Methods:The data of the complete prenatal records of 2 260 singleton pregnant women with normal delivery were retrospectively analyzed. Results:The incidence rates of macrosomia in obese and overweight groups were significantly higher than that in low and normal weight groups during pre-pregnancy and early pregnancy(P <0. 01). During the second and third trimester,the incidence rate of macrosomia in obese groups was the highest,and the incidence rate of macrosomia in low and normal weight groups was the lowest,the difference of which was not statistically significant(P<0. 01). Conclusions:The BMI before pregnancy and different periods of pregnancy is positive correlation with mocrosomia. Strict monitoring the pregnant BMI and controlling weight growth in the normal range are beneficial to prevent the occurrence of macrosomia,and the health of mothers and children.