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１９８６年１０月～１９８７年９月全国２９省（市、自治区）９４５所医院监测的１２４３２８４例围产儿中，直肠肛门闭锁／狭窄３８０例，畸形率为３．１／万，山西省畸形率最高．为６．１／万；畸形率较低的省份有辽宁、上海、云南、甘肃等，西藏、青海未检出该畸形．男性畸形率为３．６／万；女性畸形率为１．７／万，男性明显高于女性，城市畸形率为２．８／万，农村畸形率为３．６／万，城乡畸形率差异显著．３８０例直肠肛门闭锁／狭窄中，单发畸形占４２．１％，多发畸形占５７．９％，最常伴发泌尿系统畸形，伴发畸形是造成直肠肛门闭锁／狭窄围产儿死亡的主要原因。
From October 1986 to September 1987, the number of rectal anal atresia / stenosis in 1,384,284 cases of perinatal children monitored in 945 hospitals of 29 provinces (municipalities and autonomous regions) in China was 380, the rate of deformity was 3.1 / 10,000, and the highest rate of deformity was in Shanxi Province . 6.1 / Wan; Liaoning Province, Shanghai, Yunnan, Gansu and other provinces with lower deformity rate, Tibet, Qinghai did not detect the deformity. Male deformity rate was 3.6 / million; female deformity rate was 1.7 / million, male was significantly higher than female, urban deformity rate of 2.8 / million, rural deformity rate of 3.6 / million, urban and rural deformity rate difference Significant. Of the 380 cases with rectal anastomosis and stenosis, 42.1% of single anomalies and 57.9% of multiple anomalies were the most common causes of urinary system malformations. The main causes of death from perianal atresia / stenosis .