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本文对北京地区１９９０～１９９７年肝炎的发病率及其发病型别进行了比较分析，结果显示北京地区的肝炎发病率呈明显下降趋势，即由１９９０年的１０６．４４／１０万降至１９９７年的４６．４６／１０万，肝炎的流行型别亦发生了明显的变化，即甲型肝炎逐年下降，儿童中的乙型肝炎发病率减少，而非甲非乙型和未分型呈逐年上升趋势。此结果说明７年来北京地区的肝炎防治工作取得了较好的效果，同时也提示我们在今后的肝炎防治工作中应相应地改变工作重点，设法有效地控制甲肝和乙肝以外的其他型别肝炎的流行。
In this paper, the prevalence and incidence of hepatitis in Beijing from 1990 to 1997 were compared and analyzed. The results showed that the incidence of hepatitis in Beijing showed a significant downward trend, from 106.44 / 100,000 in 1990 to 1997 Of 46.46 / 10 million, the prevalence of hepatitis has also undergone significant changes in the incidence of hepatitis A decreased year by year, the incidence of hepatitis B in children decreased, while non-non-non-B and non-subtype continued to rise trend. This result shows that the prevention and treatment of hepatitis in Beijing has achieved good results over the past seven years. At the same time, it also prompts us to change the priorities in the prevention and treatment of hepatitis in the future and try to effectively control hepatitis A and hepatitis B other than hepatitis B popular.