P rospective studies with a follow-up time stretching from midlife to old age have shown that lower socioeconomic status, as indicated by lower education level or occupational grade, predicts a decline in health and functioning in the working population.1-4 This association is similar, if not more pronounced, in old age. 5-7Higher levels of work-related mental and physical strain increase the risk of early retirement and predict a decline in health and an increase in mortality among the working population. 3,[8][9][10][11][12][13][14][15] However, the association between the demands of the work in conjunction with inadequate mental or physical resources (i.e., work ability) 16 and health and functioning in old age has not been studied.17 Using a population-based 28-year follow-up study involving middle-aged municipal employees, we investigated whether work ability in midlife predicts the risk of death and disability during old age among white-collar and blue-collar employees. Methods Participants and designThe Finnish Institute of Occupational Health's Finnish Longitudinal Study on Municipal Employees (FLAME) targeted 7344 individuals aged 44-58 years at baseline in 1981.18 The participants had been chosen at random from members of all municipal professions in Finland. The baseline cohort consisted of 6257 employees (44.7% men), for a response rate of 85.2%. The first questionnaire, which explored work, health and lifestyle factors, was sent out in 1981, and follow-up data were collected in 1985, 1992, 1997 and 2009. Data on work ability were missing for 199 women and 87 men. The analyses in this study are based on the responses of 5971 Work ability in midlife as a predictor of mortality and disability in later life: a 28-year prospective follow-up study Mikaela B. von Research CMAJ Background: Poor work ability correlates with increased morbidity and early retirement from the workforce, but the association in old age is not known. We investigated work ability in midlife among white-collar and blue-collar employees as a predictor of mortality and disability 28 years later.

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Background and aims: A narrative review of quantitative population-based longitudinal studies was conducted to examine the association of formal voluntary work and personal well-being among older people doing the voluntary work and those being served. Methods: To be included, the study had to be published in a peer-reviewed journal, written in English and conducted in Western countries, participants were at least 60 years of age, the study employed a longitudinal or experimental design, the methodology and outcomes were explicitly described, and voluntary work quantified as visits or hours within a certain time frame. Results: Sixteen studies out of 2897 met the inclusion criteria for the review reporting on benefits of volunteering for those doing the voluntary work. Outcomes were collapsed into three categories of personal well-being: physical health, mental health, and psychosocial resources. All included studies came from the United States and showed that volunteering in old age predicted better self-rated health, functioning, physical activity and life satisfaction as well as decreased depression and mortality. However, it did not decrease the risk of chronic diseases or nursing home admission in old age. Only one study which met the inclusion criteria on the benefits of volunteering for older recipients was identified. Conclusions: Studies mainly used data from large datasets with only limited information about volunteering, which limits more detailed analyses. Randomized controlled trials are needed to study the effect of voluntary work on those being served, as well as to reveal the healthy participant effect among volunteers.

Findings suggest that LPA and OPA in midlife have independent, inverse effects on mobility in old age in terms of a harmful effect of vigorous OPA and a protective effect of vigorous LPA.