Survival among patients with ankylosing spondylitis: a life-table analysis

J Rheumatol. 1981 Jan-Feb;8(1):86-90.


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 December, 1975, a mean duration of 22 yr. The expected survival was calculated from life-tables for the United States 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 were observed to have survived whereas 46 were expected (p = 0.001). By 40 years after diagnosis, 16 were observed to have survived and 21 were expected (p = 0.063).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Actuarial Analysis*
  • Adult
  • Female
  • Follow-Up Studies
  • Humans
  • Male
  • Prognosis
  • Retrospective Studies
  • Spondylitis, Ankylosing / mortality*