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为摸索病毒性肝炎在部队的发生流行规律,以便有针对性地采取防治措施,我们对某部1961～1990年4826例肝炎,进行回顾性调查分析.现报告如下:1 流行强度年平均发病率为1.94±0.51‰.2 流行趋势 1961～1970年累计发病1733例,累计发病率为18.84‰,定基比为100时;1971～1980年发病2313例,累计发病率为20.11‰,定基比106.74;1981～1990年则发病780例,累计发病率9.18‰,定基比为48.73.70年代比60年代发病上升了6.74%;而80年代比90年代下降了51.27%,近年防治肝炎工作取得了明显成效.3 流行形式以散发为主.4826例中,散
In order to explore the prevalence of viral hepatitis in the armed forces in order to take targeted control measures, we conducted a retrospective survey of 4826 cases of hepatitis 1961 ~ 1990. The report is as follows: 1 epidemic intensity annual average incidence Which was 1.94 ± 0.51 ‰ .2 The epidemic trend The cumulative incidence of 1733 cases from 1961 to 1970, the cumulative incidence was 18.84 ‰, fixed base ratio of 100; 2313 cases from 1971 to 1980, the cumulative incidence was 20.11 ‰, set base ratio of 106.74; From 1981 to 1990, there were 780 cases with a cumulative incidence of 9.18 ‰ and a fixed base ratio of 48.73. The incidence in the 1970s increased by 6.74% compared with that in the 1960s, and decreased by 51.27% in the 1980s compared with the 1990s. In recent years, remarkable achievements have been made in prevention and treatment of hepatitis .3 The prevalence is predominantly distributed, with 4826 cases scattered