Kekkaku. 2011 Apr;86(4):477-80.
Statistics on tuberculosis (TB) in foreigners in Japan have been collected since 1998. The number of foreign TB patients increased from 739 in 1998 to 938 in 2009. In contrast, the number of Japanese TB patients decreased during this period. Hence, the proportion of foreigners among TB patients increased from 2.1% in 1998 to 4.0% in 2009, excluding those of unknown nationality. Especially, the proportion of foreigners among TB patients aged 20-29 years increased greatly from 9.1% in 1998 to 25.4% in 2009. Although the number of nationalities was 38, the majority of patients in 2009 were from China (28.4%), the Philippines (23.6%) and Korea (13.8%). The number of foreign TB patients aged 20-29 years was 427, accounting for 45.5% of all foreign TB patients in 2009. Eighty-one percent of foreign TB patients aged 20-29 years had developed TB within 5 years of entering Japan. The equivalent proportions in those aged 30-39 years and 40-49 years were 49% and 29%. Regarding occupation, 37.2% of foreign TB patients aged 20-29 years were students, 27.2% were full-time workers and 11.7% were part-time workers.
自1998年起，日本开始收集外国人群结核病（TB）统计数据。外国结核病患者数量从1998年的739例增至2009年的938例。相比之下，同期日本结核病患者数量有所下降。因此，结核病患者中外国人群的比例从1998年的2.1%升至2009年的4.0%（不包括国籍不明者）。特别是，20至29岁结核病患者中外国人群的比例从1998年的9.1%大幅增至2009年的25.4%。尽管国籍数量为38个，但2009年大多数患者来自中国（28.4%）、菲律宾（23.6%）和韩国（13.8%）。20至29岁的外国结核病患者数量为427例，占2009年所有外国结核病患者的45.5%。20至29岁的外国结核病患者中有81%在进入日本5年内患上结核病。在30至39岁和40至49岁人群中，这一比例分别为49%和29%。在职业方面，20至29岁的外国结核病患者中37.2%为学生，27.2%为全职工作者，11.7%为兼职工作者。
