Human aging, a biological and behavioral longitudinal study of healthy aged males, 1957-1968

The basic design of the study involved the observation and examination, in 1957, of a group of 47 aged men (ranging in age from 65 to 92 years) who were in good health. Five years later a follow-up study was planned for the 39 men still alive. However, only 29 of the 39 men could be located and persuaded to return for further testing. The second follow-up, done in 1968, involved 19 of the surviving 23 men. The study was supported by grants from the National Institute of Mental Health. The data are arranged in files by year: 1957, 1962, and 1968. Included are psychiatric data, medical evaluative data, biographical and demographic variables, and various psychological and medical test scores.