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1.4,028份胸片上有阳性发现者1,746(42.74％)。其阳性率与年龄增长成正比。简分两组,40～64岁(初老组)阳性率39.26％;65岁以上(老年组)阳性率68.91％。经统计学处理两组有显著差异,,P<0.01。 2.胸片上阳性发现以肺结核占首位(42.71％),慢性支气管炎次之(39.18％),再次为心血管疾患(15.88％),肿瘤只占1.7‰。 3.肺结核中96.38％为陈旧性病灶,对已对人均无甚影响;活动性肺结核(浸润
Positive findings were found on 1.4,028 chest radiographs (1,746 (42.74%)). The positive rate is proportional to age. Briefly divided into two groups, the positive rate of 40-64 years old (primary group) was 39.26%, and the positive rate of 68 years old (old group) was 68.91%. There was significant difference between the two groups by statistical analysis, P <0.01. 2. The positive results of chest X-ray showed that pulmonary tuberculosis (42.71%), chronic bronchitis (39.18%), again cardiovascular disease (15.88%), the tumor accounted for only 1.7 ‰. 3. Tuberculosis in 96.38% of old lesions, have no effect on the average; active tuberculosis (infiltration