摘要
目的 探讨本院近19年来足月妊娠,头位分娩,无合并症的产妇年龄、孕周、出生体重和分娩方式的变化及意义。方法 26 479例产妇资料被输入计算机,采用SSPS软件进行相关性分析、t检验和卡方检验。结果 随年代递增,产妇年龄逐渐增大,孕周减小,出生体重增加。阴道产率下降,剖宫产率上升,产钳助产率变化无规律。男女婴比例接近,男婴出生体重高于女婴,随年代不同,两者均增长,但增长幅度呈下降趋势。结论 近十几年来,胎儿出生体重逐渐增加,剖宫产率上升,男女婴比例略高于1:1。
Objective To study the changes of maternal age? gestational weeks?birth weight and delivery mode in our hospital from 1981 Jan. to 1999 June. Methods The data camefrom a retrospective study, 26 179 cases of primiparous women with head presentation, term pregnancy, and no complication were analysed. The age, gestational week, birth weight and delivery modes were inputted into computer, then adopting correlation analyses, t-test and caloric test. Results The age, birth weight are positive correlated with time , while the gestational weeks shows negative correlation. Vaginal birth rate declines gradually and cesarean section rate increases with time. Conclusion The birth weight and cesarean section rate increase. The ratio of boys and girls is roughly the same.
