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日本脑肿瘤全国统计委员会(委员长佐野圭司帝国大学教授)在最近的报告中明确指出,脑肿瘤患者自七十年代以来呈急剧增加趋势。特别是高龄者的发病率,十年间增加了8倍以上。这无疑是高龄化社会的一个深刻的问题。这个委员会的调查报告是以约250所全国主要医院为对象,收集了从1965～1983年共15年间约36000个病例进行了分析。结果表明,每10万人中的发病数,到77年止为5人,81年约8人,82年约10人,83年约9人,几乎是77年
In a recent report, the National Statistical Commission for Japanese Brain Cancer (Chairperson of the University of Sano Kyushu Imperial University) clearly pointed out that there has been a sharp increase in the number of patients with brain tumors since the 1970s. In particular, the incidence of elderly people increased more than eight-fold in ten years. This is undoubtedly a profound issue for the aging society. The commission’s investigation report, which is based on about 250 major national hospitals, collected about 36,000 cases from 1965 to 1983 for a total of 15 years. The results showed that the number of cases per 100,000 population was 5 in 77 years, 8 in 81, 10 in 1982, 9 in 1983, almost 77 years