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1.调查在我区1990年1683例病毒性肝炎中,甲肝785例,占46.64%。 (1)年龄分布以20～24岁组发病为多,占总病例的16.17%,其次是5～9岁占12.23%,与有关资料报道相符。 (2)职业分布,以工人学生发病为多,考虑与人民生活水平提高,家庭生活逐渐向社会型转化,
1. Investigation In our district in 1683 cases of viral hepatitis in 1990, 785 cases of hepatitis A, accounting for 46.64%. (1) The distribution of age was mostly in 20-24 years old group, accounting for 16.17% of the total cases, followed by 12.23% of 5-9 years old, which accorded with the related data. (2) The occupational distribution is based on the incidence of workers and students, considering the improvement of people’s living standards, the gradual transformation of family life to the society,