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临床资料1 一般资料收集了自1986年7月至1987年9月我院收治足月单胎头位初产妇符合第一产程延长者138例,同期分娩总数918例,发病率15%,与同期(随机抽取)足月单胎头位初产妇无第一产程延长者200例对照,延长组最小年龄22岁,平均年龄25±1岁,对照组最大36岁,最小年龄21岁,平均年龄25±1岁。2 产程异常标准临产至宫口开全为第一产程,第一产程时间≥15h 为第一产程延长;第二产程时间≥2h 为第二产程延长。
Clinical data 1 General information collected from July 1986 to September 1987 in our hospital admitted to full-term single-head primipara meet the first stage extension of 138 cases, the same period a total of 918 cases of childbirth, the incidence rate of 15%, with the same period (Randomly selected) full-term single-head primipara no first-stage extension of 200 cases of control, extension group minimum age of 22 years, mean age 25 ± 1 years old, the control group up to 36 years old, the minimum age of 21 years old, mean age 25 ± 1 year old. 2 Abnormal labor standard Maternity to labor as the first stage of labor, the first stage of labor ≥ 15h for the extension of the first stage of labor; second stage of labor ≥ 2h for the second stage of extension.