Dataset Information

Mental Health Following Acquisition of Disability in Adulthood--The Impact of Wealth.

ABSTRACT:

Background

Acquisition of a disability in adulthood has been associated with a reduction in mental health. We tested the hypothesis that low wealth prior to disability acquisition is associated with a greater deterioration in mental health than for people with high wealth.

Methods

We assess whether level of wealth prior to disability acquisition modifies this association using 12 waves of data (2001-2012) from the Household, Income and Labour Dynamics in Australia survey--a population-based cohort study of working-age Australians. Eligible participants reported at least two consecutive waves of disability preceded by at least two consecutive waves without disability (1977 participants, 13,518 observations). Fixed-effects linear regression was conducted with a product term between wealth prior to disability (in tertiles) and disability acquisition with the mental health component score of the SF-36 as the outcome.

Results

In models adjusted for time-varying confounders, there was evidence of negative effect measure modification by prior wealth of the association between disability acquisition and mental health (interaction term for lowest wealth tertile: -2.2 points, 95% CI -3.1 points, -1.2, p<0.001); low wealth was associated with a greater decline in mental health following disability acquisition (-3.3 points, 95% CI -4.0, -2.5) than high wealth (-1.1 points, 95% CI -1.7, -0.5).

Conclusion

The findings suggest that low wealth prior to disability acquisition in adulthood results in a greater deterioration in mental health than among those with high wealth.

SUBMITTER: Kavanagh AM

PROVIDER: S-EPMC4596479 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Publications

Mental Health Following Acquisition of Disability in Adulthood--The Impact of Wealth.

Kavanagh Anne Marie AM Aitken Zoe Z Krnjacki Lauren L LaMontagne Anthony Daniel AD Bentley Rebecca R Milner Allison A

PloS one 20151007 10

<h4>Background</h4>Acquisition of a disability in adulthood has been associated with a reduction in mental health. We tested the hypothesis that low wealth prior to disability acquisition is associated with a greater deterioration in mental health than for people with high wealth.<h4>Methods</h4>We assess whether level of wealth prior to disability acquisition modifies this association using 12 waves of data (2001-2012) from the Household, Income and Labour Dynamics in Australia survey--a popula ...[more]

PMID: 26444990

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Project description:ObjectivesThere is evidence of a causal relationship between disability acquisition and poor mental health, but the substantial heterogeneity in the magnitude of the effect is poorly understood and may be aetiologically informative. This study aimed to identify demographic and socioeconomic factors that modify the effect of disability acquisition on mental health.Design and settingThe Household, Income and Labour Dynamics in Australia Survey is a nationally representative longitudinal survey of Australian households that has been conducted annually since 2001. Four waves of data were included in this analysis, from 2011 to 2014.ParticipantsIndividuals who acquired a disability (n=387) were compared with those who remained disability-free in all four waves (n=7936).Primary outcome measureMental health was measured using the mental health subscale of the Short Form 36 (SF-36) general health questionnaire, which measures symptoms of depression, anxiety and psychological well-being.MethodsLinear regression models were fitted to estimate the effect of disability acquisition on mental health, testing for effect modification by key demographic and socioeconomic characteristics. To maximise causal inference, we used a propensity score approach with inverse probability of treatment weighting to control for confounding and multiple imputation using chained equations to assess the impact of missing data.ResultsOn average, disability acquisition was associated with a 5-point decline in mental health score (estimated mean difference: -5.1, 95%?CI -7.2 to -3.0). There was strong evidence that income and relationship status modified the effect, with more detrimental effects in the lowest (-12.5, 95%?CI -18.5 to -6.5) compared with highest income quintile (-1.1, 95%?CI -4.9 to 2.7) and for people not in a relationship (-8.8, 95%?CI -12.9 to -4.8) compared with those who were (-3.7, 95%?CI -6.1 to -1.4).ConclusionsOur results suggest that the detrimental effect of disability acquisition on mental health is substantially greater for socioeconomic disadvantaged individuals.

Dataset Information

Mental Health Following Acquisition of Disability in Adulthood--The Impact of Wealth.

Background

Methods

Results

Conclusion

Publications

Mental Health Following Acquisition of Disability in Adulthood--The Impact of Wealth.

Similar Datasets

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