Associations of psychological, functional, and biological factors with age changes in the self-perceived health of old persons

This research investigates the associations of psychological and biological factors with the self-perceived health of old persons. Participants were 411 residents of 11 retirement homes in Zagreb, Croatia: 104 men, 307 women, aged 56–96 years (average 79) at baseline, mobile, and not diagnosed with dementia. The variables measured, at baseline and at 2-year follow-up, were sociodemographics, self-perceived health, functional ability, cognitive function, depression, and social participation. Biochemical variables were measured from vein blood sample at baseline. Cross-sectional and longitudinal analyses explained 33%–38% of self-perceived health variance. Functional ability, depressive symptoms, and age were significant predictors of self-perceived health in all analyses. Two biological cardiovascular risk factors variables – glucose and urea – were significantly associated with self-perceived health.