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本报告提供四年来在日本对679例鼻咽癌患者的描述性流行病学方面的研究。从1969年至1972年,日本各大医院和医学院耳鼻喉科门诊部报告了851例鼻咽癌患者的情况,显示出日本是鼻咽癌发病率最低的代表性国家。然而,其特点,如性别比例,与发病率高的国家几乎相同,即男:女为2.1:1。年龄分布,男女都以50岁～和60岁～这年龄组为发病高峰。一般认为:发病率较高的国家,青少年患者较多。例如台湾,40岁～或50岁～为发病高峰。另方面,在那些发
This report provides a descriptive epidemiological study of 679 NPC patients in Japan over the past four years. From 1969 to 1972, the otolaryngology clinics of major hospitals and medical schools in Japan reported on the status of 851 nasopharyngeal cancer patients, showing that Japan is the representative country with the lowest incidence of nasopharyngeal cancer. However, its characteristics, such as gender, are almost the same as those in countries with a high incidence of disease, ie, 2.1:1 for males and females. Age distribution, both males and females aged 50 to 60 and this age group is the peak incidence. It is generally believed that there are more young people in countries with higher incidence. For example, in Taiwan, 40 or 50 years old is the peak incidence. On the other hand, in those hair