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The impact of socioeconomic status on changes in the general and mental health of women over time: evidence from a longitudinal study of Australian women
Research Centre for Gender Health & Ageing, Faculty of Health, University of Newcastle.
2013 (English)In: International Journal for Equity in Health, ISSN 1475-9276, E-ISSN 1475-9276, Vol. 12, 25Article in journal (Refereed) Published
Abstract [en]

INTRODUCTION: Generally, men and women of higher socioeconomic status (SES) have better health. Little is known about how socioeconomic factors are associated with changes in health as women progress through mid-life. This study uses data from six survey waves (1996 to 2010) of the Australian Longitudinal Study on Women's Health (ALSWH) to examine associations between SES and changes in the general health and mental health of a cohort of women progressing in years from 45-50 to 59-64.

METHODS: Participants were 12,709 women (born 1946-51) in the ALSWH. Outcome measures were the general health and mental health subscales of the Medical Outcomes Study Short Form 36 Questionnaire (SF-36). The measure of SES was derived from factor analysis of responses to questions in the ALSWH baseline survey (1996) on school leaving age, highest qualifications, and current or last occupation. Multi-level random coefficient models, adjusted for socio-demographic factors and health behaviors, were used to analyze repeated measures of general health and mental health. Survey year accounted for changes in factors across time. In the first set of analyses we investigated associations between the SES index, used as a "continuous" variable, and general health and mental health changes over time. To illuminate the impact of different levels of SES on health, a second analysis was conducted in which SES scores were grouped into three approximately equal sized categories or "tertiles" as reported in an earlier ALSWH study. The least square means of general and mental health scores from the longitudinal models were plotted for the three SES tertiles.

RESULTS: The longitudinal analysis showed that, after adjusting for the effects of time and possible confounders, the general (mental) health of this cohort of mid-aged women declined (increased) over time. Higher SES women reported better health than lower SES women, and SES significantly modified the effects of time on both general and mental health in favor of higher SES women.

CONCLUSIONS: This study contributes to our current understanding of how socioeconomic and demographic factors, health behaviors and time impact on changes in the general and mental health of women progressing in years from 45-50 to 59-64.

Place, publisher, year, edition, pages
2013. Vol. 12, 25
Keyword [en]
Age, Aging, Women, Health inequalities, Socioeconomic, Health change, Mental health
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:umu:diva-98506DOI: 10.1186/1475-9276-12-25ISI: 000318068000001PubMedID: 23570377OAI: oai:DiVA.org:umu-98506DiVA: diva2:782958
Available from: 2015-01-23 Created: 2015-01-23 Last updated: 2017-12-05

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Stewart Williams, Jennifer

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