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J Rheumatol. 1991 Sep;18(9):1307-12.

Mortality predictors among 263 patients with rheumatoid arthritis.

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  • 1Department of Medicine, Stanford University School of Medicine, CA.


A cohort of 263 patients who completed Health Assessment Questionnaires (HAQ) each year from 1981 to 1989 is examined. Forty-three (43) possible covariates measured in 1981 are considered that might help predict mortality over the 8 years of the study. We use univariate correlation coefficients, stepwise regressions, and survival functions to identify a number of covariates that appear useful for predicting survival: age (-), prednisone use (-), disability index (-), male sex (-), never married (-), penicillamine use (+), divorced (+), and no occupation (-). Our results confirm studies suggesting that the HAQ disability index is a useful prognosticator of length of survival.

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