Statistical study on malignant melanoma in Japan (1970-1976).
Statistical study on malignant melanoma in Japan (1970-1976).
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日本恶性黑色素瘤统计研究（1970-1976）。
DOI：
10.1620/tjem.121.355
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
M. Seiji
中科院分区：
文献类型：
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作者：
T. Ohsumi;M. Seiji
作者在1972年报告了一项基于501例恶性黑色素瘤的统计研究。作为一项持续的研究，这项研究对456例黑色素瘤进行了回顾这些病例是在1970年到1976年的六年间报道的。这两项研究得出了非常相似的结果：(1)恶性黑色素瘤的年发病率有明显的上升趋势，平均每年71.1例。(2)年龄分布在70年代出现一个高峰。(3)男女性别比为1.1:1。(4)日本人口平均病例数在第50年呈显著增长趋势，在第7和第8年出现两个高峰。(5)所有黑色素瘤的平均发病年龄为51.6岁，而脑脊髓黑色素瘤的平均发病年龄为25.4岁。在既往存在色素皮损的皮肤黑色素瘤中，足部原发性黑色素瘤发病的中位年龄为38.7岁，除足部外的原发黑色素瘤发病的中位年龄为65.9岁。(6)考虑到单位皮肤面积黑色素细胞的数量，足底黑色素瘤的发病率较高。
The authors reported in 1972 a statistical study based on 501 cases of malignant melanoma. As continouous study this review was carried out on 456 cases of melanoma which were reported during six years between 1970 and 1976. These two studies showed quite similar results as follows: (1) Yearly incidnece of malignant melanoma indicated a definite upward trend and the average number of patients was 71.1 per year. (2) Distribution by age showed one peak in the seventh decade. (3) Sex ratio was 1.1: 1. (4) The number of cases per total population in Japan showed great increase in over fifth decades and two peaks in the 7th and 8th decades. (5) Average age of the onset of all melanoma was 51.6 years old, while, that of brain and spinal cord melanoma was 25.4 years old. In the skin melanoma with preexisting pigmented skin lesions, the median age of the onset of primary melanoma on the foot was 38.7 years old and that of originated melanoma except foot was 65.9 years old. (6) Incidence of the melanoma was high in the sole considering the number of melanocytes per unit skin area.