【作者】 张燕；

【导师】 马润玫； 肖虹； 李白鸾； 田玉芹；

【作者基本信息】 昆明医学院 ， 妇产科学， 2009， 硕士

【摘要】 目的利用昆明医学院第一附属医院妇产科不同孕龄新生儿出生体重经验百分位数,建立新生儿出生体重修匀百分位数值及曲线,得到昆明市不同孕龄新生儿出生体重标准及男、女婴不同孕龄新生儿出生体重标准。比较不同性别、不同母亲年龄及不同产次新生儿出生体重的差异。方法对1999.1.1²008.12.31期间在昆明医学院第一附属医院产科住院分娩,母亲无并发症且新生儿存活无畸形的15830例病例进行回顾性研究。查阅全部研究对象的住院病历,记录与新生儿出生体重相关的因素及母亲人口学资料。用四次方方程y=a+bx+c²+dx³+ex⁴分别对新生儿实际出生体重及男婴、女婴10^th、25^th、50^th、75^th、90^th百分位数曲线进行修匀,分别计算修匀后出生体重。结果1.得到我院正常单活胎新生儿及男、女婴出生体重各孕周10^th、25^th、50^th、75^th、90^th百分位数经验出生体重与修匀后各孕周出生体重。2.我院十年间正常活单胎中小于孕龄儿的总体发生率为10.16%,而大于孕龄儿的总体发生率为10.29%。3.我院出生的新生儿中男婴比女婴的平均出生体重大104g。4.母亲年龄＜20岁组中新生儿出生体重明显低于其他年龄段,而母亲年龄在25岁至29岁间所生育的新生儿出生体重最大。5.在我院出生的新生儿中母亲产次对出生体重影响无意义。6.近十年来我院新生儿出生体重变化不明显。结论1.得到我院正常单活胎新生儿及男、女婴出生体重各孕周10^th、25^th、50^th、75^th、90^th百分位数经验出生体重与修匀后各孕周出生体重。2.我院大于孕龄儿与小于孕龄儿发生率与预期接近。3.男婴平均出生体重大于女婴。5.在我院出生的新生儿中母亲产次对出生体重影响无意义。6.近十年来我院新生儿出生体重变化不明显。更多还原

【Abstract】 Objective:To develop local birthweight percentiles by gestational age,and for male and female singleton infants born in Kunming,China,and to study effects of maternal age and parity on birthweight.Material and methods:Cross-sectional analysis was conducted using perinatal database at out unit.The study population consists of all live births in the First Affiliated Hospital of Kunming Medical College between 1 January 1999 and 31 December 2008.During the study period,18,796 infants were delivered,after exclusion for stillbirth,maternal complications,and data missing,remaining 15830 birth for final analysis.Computer the raw birth weight for gestational,then non-linear regression models were used to smooth curves for each gestational age.Results:1.The mean birthweight in this study group were 3204g.2. 10^th,25^th,50^th,75^th,90⁹th) percentile of birthweighi were desctibed and the curves were successfully smoothed.3.The incidence of LGA in the hospital were 10.29%and SGA is 10.16%.4.The mean birth weight of male infant was 104g higher than female infant.After 36 weeks the difference in the mean birth weight were statistically significant.5.Parity were not related with significantly with birth weigt.Conclusions:We present recent birthweight percentiles by gestational age based on local data in Kunming.These percentiles provide current local norms for clinicians and researchers,and can provide a baseline for monitoring perinatal outcomes.更多还原