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Intra-generational Social Mobility and Mortality Among Older Men in the Concord Health and Ageing in Men Project: A Cohort Study

Abstract

Objectives: We examined associations between intra-generational social mobility (reflected in life-course socioeconomic trajectories) and mortality, among older men.

Methods: Data came from a prospective Australian community-based cohort of older men. Social mobility was defined by socioeconomic indicators from three points in the life-course: educational attainment (late adolescence-early adulthood), occupation (mid-life), and current sources of income (older age). We defined indicators of social mobility trajectory (6 categories; reflecting the direction of social mobility) and social mobility status (2 categories; mobile or non-mobile). We used Cox regression to examine associations with mortality, adjusting for age, country of birth, and living arrangement.

Results: We followed 1568 men (mean age 76.8, SD 5.4) for a mean duration of 9.1 years, with 797 deaths recorded. Moving upward was the predominant social mobility trajectory (36.0%), followed by mixed trajectories (25.1%), downward (15.1%), stable low (12.2%), stable high (7.6%), and stable middle (4.0%). Men with downward (Hazard ratio 1.58, 95% CI 1.13 to 2.19) and stable low socioeconomic trajectories (1.77, 1.25 to 2.50) had higher mortality risks than men with stable high socioeconomic trajectories, while men with upward trajectories had similar risks to those with stable high trajectories. 76.2% of the participants were classified as having mobile status; no associations were evident between binary social mobility status and mortality.

Discussions: These findings suggest cumulative and persistent exposure to disadvantaged socioeconomic conditions across the life-course, rather than social mobility, is associated with increased mortality. For each stage of the life-course, addressing socioeconomic disadvantage may reduce inequities in mortality.

References
1.
Hallqvist J, Lynch J, Bartley M, Lang T, Blane D . Can we disentangle life course processes of accumulation, critical period and social mobility? An analysis of disadvantaged socio-economic positions and myocardial infarction in the Stockholm Heart Epidemiology Program. Soc Sci Med. 2004; 58(8):1555-62. DOI: 10.1016/S0277-9536(03)00344-7. View

2.
Nagamine Y, Fujiwara T, Tani Y, Murayama H, Tabuchi T, Kondo K . Gender Difference in the Association Between Subjective Socioeconomic Mobility Across Life Course and Mortality at Older Ages: Results From the JAGES Longitudinal Study. J Epidemiol. 2019; 30(11):497-502. PMC: 7557171. DOI: 10.2188/jea.JE20190083. View

3.
Lacey R, Belcher J, Croft P . Validity of two simple measures for estimating life-course socio-economic position in cross-sectional postal survey data in an older population: results from the North Staffordshire Osteoarthritis Project (NorStOP). BMC Med Res Methodol. 2012; 12:88. PMC: 3438121. DOI: 10.1186/1471-2288-12-88. View

4.
Pensola T, Martikainen P . Cumulative social class and mortality from various causes of adult men. J Epidemiol Community Health. 2003; 57(9):745-51. PMC: 1732591. DOI: 10.1136/jech.57.9.745. View

5.
Uggla C, Billingsley S . Unemployment, intragenerational social mobility and mortality in Finland: heterogeneity by age and economic context. J Epidemiol Community Health. 2018; 72(11):1003-1008. DOI: 10.1136/jech-2018-210457. View