SURVIVAL AMONG PATIENTS WITH ANKYLOSING-SPONDYLITIS - A LIFE-TABLE ANALYSIS

  • 1 January 1981
    • journal article
    • research article
    • Vol. 8  (1) , 86-90
Abstract
A life-table analysis of survival was performed retrospectively on 56 white patients (49 males) with ankylosing spondylitis. The disease was diagnosed in these patients between 1934 and 1960 at a mean age of 35.2 yr. Patients were followed until Dec., 1975, a mean duration of 22 yr. The expected survival was calculated from life-tables for the USA population matched for sex, age, race, geographic area and calendar year. For the first 10 yr of follow-up, there was no difference in the observed and expected survival. By 20 yr after diagnosis, 37 patients survived; 46 were expected (P = 0.001). By 40 yr after diagnosis, 16 survived and 21 were expected (P = 0.063).

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