RHEUMATIC-FEVER IN ROCHESTER, MINNESOTA, 1935-1978

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  • 1 January 1982
    • journal article
    • research article
    • Vol. 57  (12) , 753-757
Abstract
The incidence of rheumatic fever in the population of Rochester, Minnesota, 1935-1978, was determined by the medical records-linkage system of the Rochester Epidemiology Program Project. The annual age-adjusted incidence rate per 100,000 population for all episodes of rheumatic fever was 9.7, comprised 7.0 for initial attacks and 2.7 for recurrent attacks. There was a marked decline over time: incidence rates of initial episodes decreased from 13.6 in 1935-1949 to 8.2 in 1950-1964 and 2.7 in 1965-1978; rates of recurrent attacks decreased from 7.0 to 3.2 and 0.3 in the same intervals. There was a secular trend in the clinical manifestations of rheumatic fever; the proportion of initial episodes with carditis increased from 23% in 1935-1944 to 52% in 1965-1978.

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