Analysis Oil the Disease Pattern in Residents of Shandong Province 1970～1994

The incidence rate of acute infectious disease in 1994 was decreased by 96.55％ when compared with 1970．Malaria and measles were the major prevalent infeetious diseases in early 1970s，while in 1990s，the three leading infectious diseases were hepatitis，shigella dysentery and epidemic hemorrhagic fever．The data of two-week incidelice rares of diseases in 1994 showed that the two major diseases were commnon cold and acute/chronic gastroenteritis both in cities and rural areas Through chronic diseases prevalence survey，we found a difference of disease patterns between cities and rural areas．Hypertension，chronic gastroenteritis and digestive ulcer were the main chronie diseses in cities，while the main chronic diseases were chtonic bronchitis and pulomonary emphysema in rural areas．The gross and standardized mortalities of infectious disease decreased by 88.68％and 91.48％respectively during the past 25 years．In the rank of cause ofdeath，the rank of death of infectious disease changed from the second place in 1970s to the ninth in 1990s．The rank of malignant tumor and cerebrovascular d~seases changed from the third and the fifth to the second and the third respectively．The first place in the rank of cause of death changed from respiratory diseases to malignam tumor in cities，while espiratory disease remained the first place in rural areas，of which more than 70％were caused by ptdmonary heart disease re-suited from chronic bronchitis．