Descriptive epidemiological method and time-sequential analysis were used to analyze the incidence of hepatitis. [Results] HBV was the main type of hepatitis in 1990-2006 Shanghai.

• [方法]用1990-2006年上海市人口及疫情报告资料，按描述性流行病学方法结合时间序列分析本市病毒性肝炎发病情况。