The Global Activity Limitation Index measured function and disability similarly across European countries

Assessment of Older People: Self-Maintaining and Instrumental Activities of Daily Living

M. P. Lawton, Elaine Brody · The Gerontologist · 1969 · 18.5K citations

Social Sciences, Psychology, Social Work +12

STUDIES OF ILLNESS IN THE AGED. THE INDEX OF ADL: A STANDARDIZED MEASURE OF BIOLOGICAL AND PSYCHOSOCIAL FUNCTION.

Sidney Katz · PubMed · 1963 · 12.2K citations

Education, Rehabilitation Medicine, Aging +16

Aging, Natural Death, and the Compression of Morbidity

James F. Fries · New England Journal of Medicine · 1980 · 3.3K citations

Education, Geriatric Medicine, Aging +11

Self-rated health: a predictor of mortality among the elderly.

Jana Mossey, E. Shapiro · American Journal of Public Health · 1982 · 2.2K citations

Social Sciences, Geriatric Medicine, Geriatric Assessment +16

Studies of Illness in the Aged

JAMA · 1963 · 1.9K citations

Education, Geriatric Medicine, Human Development +10