BACKGROUND: Informal care is a common form of social support, which can vary greatly in its intensity. While views of aging have shown to be relevant to mental health before, we aim to analyze whether the association between views of aging and depressive symptoms is influenced by the provision of informal care and its intensity.
METHODS: Data of six waves of the Health and Retirement Study in the United States was used. The sample includes up to 41,058 observations pooled over six waves of community-dwelling adults aged ≥50 years. Depressive symptoms were measured with the Center for Epidemiologic Studies Depression Scale (CESD) and attitudes towards own aging (ATOA) with the Philadelphia Geriatric Center Morale Scale (higher score indicates positive attitudes); informal caregiving (no/yes) and caregiving intensity (moderate, intense) were surveyed. Adjusted fixed effects regression analysis with robust standard errors, and with caregiving as moderator variable were calculated.
RESULTS: Informal caregiving did not interact with ATOA. However, transitioning into intense caregiving significantly moderated the association between ATOA and depressive symptoms. Lower depressive symptoms were associated with better ATOA and this association was significantly stronger in the intense caregiving condition than in the non-caregiving condition. No significant interaction effects were found between any form of caregiving and subjective age.
CONCLUSIONS: The possibility of reciprocal effects cannot be excluded.
CONCLUSIONS: Internalized ageism and depressive symptoms are more strongly related among caregivers who provide intense care. Thus, interventions to reduce internalized ageism could be helpful in particular among this vulnerable group of informal caregivers.

The aim of the study is to present a new and efficient way of measuring the quality of life among older populations, with special attention to morale, positive outlook on life and ageing. The measure is based on the Philadelphia Geriatric Center Morale Scale (PGCM), originally consisting of 22 items. The growing numbers and proportions of older people among European populations has increased the need to obtain more reliable data on their needs, values, life experiences and overall quality of life. Using data from six surveys conducted in the Czech Republic, we have formulated a three-item positive outlook on life and ageing (POLA) scale. Our analyses are divided into three steps: (1) constructing the scale and testing its internal consistency; (2) testing the scale\'s external validity using mean comparisons and correlation coefficients; and (3) determining the factors affecting a positive outlook on later life, such as gender and education. We have confirmed that the three-item approach to measuring positive outlook on ageing as a part of morale is highly applicable to surveys, producing compelling results in assessing important quality-of-life sub-concepts, such as subjective health, subjective age, and loneliness.