psychological aspect

Gilbart, E. E., Hirdes, J. P. 2000. Stress, social engagement and psychological well-being in institutional settings: Evidence based on the minimum data set 2.0. Canadian Journal on Aging. 19 (SUPPL. 2) 50-66.

Hirdes, J. P., Forbes, W. F. 1989. Estimates of the relative risk of mortality based on the ontario longitudinal study of aging. Canadian Journal on Aging. 8 (3) 222-237.