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长期以来,人们总认为肺结核病多发于青年人,甚至有“年过半百,不得结核”的说法。然而,随着结核病流行情况的好转,青年人结核病的患病率已大大低于老年人。不少地区老年结核病的患病和发病率已居各年龄组的首位,并有继续上升的趋势。美国1977年的调查,25～44岁组发病率为13.8/10万,而65岁以上者为34.9/10万。北京地区1986年调查,15～
For a long time, people always think that tuberculosis occurs frequently in young people and there is even a saying that “it is over half a year and no tuberculosis”. However, as the tuberculosis epidemic has improved, the prevalence of tuberculosis in young people has been significantly lower than in the elderly. In many areas, the prevalence and incidence of tuberculosis in the elderly have been the highest among all age groups and there is a tendency to continue to rise. According to a survey conducted by the United States in 1977, the incidence in the 25- to 44-year-old group was 13.8 / 100,000 while that of those over 65 was 34.9 / 100,000. Beijing 1986 survey, 15 ~