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贵阳、遵义地区八个医疗单位,于1971年10～12月间对452名结扎输精管的群众进行了效果与临床检查,调查情况如下:调查对象包括工人、贫下中农332人,机关干部和医务人员等111人,职业记录不详者9人。调查时年龄最小者30岁,最大者62岁。受术者子女数最少的1个,最多10个,452人中平均子女数4.02个。结扎年限已经6年以上者占87.8%。
Eight medical units in Guiyang and Zunyi performed effect and clinical examinations on 452 people who had ligation of the vas deferens from October to December 1971. The investigation was as follows: The survey included 332 workers, poor middle peasants, cadres and medical staff 111 people, occupation records unknown 9. The youngest in the survey was 30 years old, the largest of 62 years old. The subject with the least number of children 1, up to 10, 452 people in the average number of children 4.02. Ligation years have been more than 6 years accounted for 87.8%.