The Association of Health and Income in the Elderly: Experience from a Southern State of BrazilReport as inadecuate




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Objectives

In high income, developed countries, health status tends to improve as income increases, but primarily through the 50th-66th percentile of income. It is unclear whether the same limitation holds in middle income countries, and for both general assessments of health and specific conditions.

Methods

Data were obtained from Brazil, a middle income country. In-person interviews with a representative sample of community residents age ≥60 N=6963, in the southern state of Rio Grande do Sul, obtained information on demographic characteristics including household income and number of persons supported, general health status self-rated health, functional status, depression, and seven physician-diagnosed, self-reported health conditions. Analyses used household income adjusted for number supported and economies of scale together with higher order income terms, and controlled for demographics and comorbidities, to ascertain nonlinearity between income and general and specific health measures.

Results

In fully controlled analyses income was associated with general measures of health linearly with self-rated health, nonlinearly with functional status. For specific health measures there was a consistent linear association with depression, pulmonary disorders, renal disorders, and sensory impairment. For musculoskeletal, cardiovascular negative association, and gastrointestinal disorders this association no longer held when comorbidities were controlled. There was no association with diabetes.

Conclusion

Contrary to findings in high income countries, the association of household-size-adjusted income with health was generally linear, sometimes negative, and sometimes absent when comorbidities were controlled.



Author: Gerda G. Fillenbaum, Sergio L. Blay , Carl F. Pieper, Katherine E. King, Sergio B. Andreoli, Fábio L. Gastal

Source: http://plos.srce.hr/



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