Mortality in Parkinson's disease: A 38‐year follow‐up study

Abstract

Two hundred thirty patients had died by December 31, 2012; a total of 3,489 person-years were available for observation. The SMR at 38 years of follow-up was 2.02 (1.76-2.29). Employing Cox's proportional hazard modeling, male sex, gait disorder, absence of classical rest tremor, and absence of asymmetry predicted poor survival in this cohort. Increased cause-specific SMRs were found for pneumonia and cerebrovascular and cardiovascular diseases.