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１９８５年至１９８８年收治食管癌１０６例，随机分为两组，放射加平消片组５３例，单纯放疗组５３例。两组外照射剂量为６５～７０Ｇｙ。平消片口服，每次６片，一日三次，与放射治疗同时进行。放疗加平消片组随访率为９４．３％，１、３、５年生存率分别为４９．０％，３２．１％和１８．９％，单纯放射组随访率为９２．４％，１、３、５年生存率分别为３９．６％，１７．０％和９．４％，两组经统计学处理有显著差异（Ｐ＜０．０５）。
From 1985 to 1988, 106 cases of esophageal cancer were randomly divided into two groups, 53 cases of radiation Jiaping Xiaopian group and 53 cases of radiotherapy alone group. The external irradiation doses in the two groups were 65-70 Gy. Pingxiao Tablets are given orally, 6 tablets each time, three times a day, and concurrently with radiation therapy. The follow-up rate was 94.3% in radiotherapy plus Pingpingxiaopian group. The 1-, 3-, and 5-year survival rates were 49.0%, 32.1%, and 18.9%, respectively. The follow-up rate of radiotherapy alone was 92.4%. 1 The 3-year and 5-year survival rates were 39.6%, 17.0%, and 9.4%, respectively. There was a statistically significant difference between the two groups (P<0.05).