Mortality risk assessment in the elderly: the utility of delayed word recall.

Cognitive impairment is an important predictor of mortality in the elderly. An extended delayed word recall (DWR) is one of the most sensitive tests for cognitive impairment. A mortality study was performed on a population of long-term care insurance applicants aged 70 and older who were underwritten during the years 1995-2003 and who had cognitive testing by DWR. Within this relatively short period of time, individuals with DWR score of 0-5 compared to those with DWR score of 6-10 had a markedly worse mortality outcome overall and also when analyzed by gender, underwriting age, underwriting year or smoking status.