1. From the Division of Medicine for the Elderly, Leicester General Hospital (K.R.B., S.M.P.); Division of Medicine for the Elderly, Glenfield Hospital (J.F.P.); and the Department of Epidemiology and Public Health, Leicester University (S.I.P., C.S., H.D., R.P.A., K.W., C.J.), Leicester, England. Dr Castleden is a professor emeritus of Leicester University.