Hélène Bihan1, Kathrin Backholer1, Anna Peeters1, Christopher E Stevenson1, Jonathan E Shaw1, Dianna J Magliano1. 1. Hélène Bihan is with the Department of Endocrinology, Diabetology and Metabolic Diseases, Avicenne Hospital, Bobigny, France. Kathrin Backholer, Anna Peeters, Jonathan E. Shaw, and Dianna J. Magliano are with the Baker IDI Heart and Diabetes Institute, Melbourne, Australia. Christopher E. Stevenson is with the School of Public Health and Preventive Medicine, Monash University, The Alfred Centre, Melbourne.
Abstract
OBJECTIVES: To determine the association of socioeconomic position indicators with mortality, without and with adjustment for modifiable risk factors. METHODS: We examined the relationships of 2 area-based indices and educational level with mortality among 9338 people (including 8094 younger than 70 years at baseline) of the Australian Diabetes Obesity and Lifestyle (AusDiab) from 1999-2000 until November 30, 2012. RESULTS: Age- and gender-adjusted premature mortality (death before age 70 years) was more likely among those living in the most disadvantaged areas versus least disadvantaged (hazard ratio [HR] = 1.48; 95% confidence interval [CI] = 1.08, 2.01), living in inner regional versus major urban areas (HR = 1.36; 95% CI = 1.07, 1.73), or having the lowest educational level versus the highest (HR = 1.64; 95% CI = 1.17, 2.30). The contribution of modifiable risk factors (smoking status, diet quality, physical activity, stress, cardiovascular risk factors) in the relationship between 1 area-based index or educational level and mortality was more apparent as age of death decreased. CONCLUSIONS: The relation of area-based socioeconomic position to premature mortality is partly mediated by behavioral and cardiovascular risk factors. Such results could influence public health policies.
OBJECTIVES: To determine the association of socioeconomic position indicators with mortality, without and with adjustment for modifiable risk factors. METHODS: We examined the relationships of 2 area-based indices and educational level with mortality among 9338 people (including 8094 younger than 70 years at baseline) of the Australian Diabetes Obesity and Lifestyle (AusDiab) from 1999-2000 until November 30, 2012. RESULTS: Age- and gender-adjusted premature mortality (death before age 70 years) was more likely among those living in the most disadvantaged areas versus least disadvantaged (hazard ratio [HR] = 1.48; 95% confidence interval [CI] = 1.08, 2.01), living in inner regional versus major urban areas (HR = 1.36; 95% CI = 1.07, 1.73), or having the lowest educational level versus the highest (HR = 1.64; 95% CI = 1.17, 2.30). The contribution of modifiable risk factors (smoking status, diet quality, physical activity, stress, cardiovascular risk factors) in the relationship between 1 area-based index or educational level and mortality was more apparent as age of death decreased. CONCLUSIONS: The relation of area-based socioeconomic position to premature mortality is partly mediated by behavioral and cardiovascular risk factors. Such results could influence public health policies.
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