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The main causes of death contributing to absolute and relative socio-economic inequality in Italy
G Alicandro1, G Sebastiani2, P Bertuccio3
1Italian National Institute of Statistics (ISTAT), Via Cesare Balbo 16, 00184 Rome, Italy; Department of Clinical Sciences and Community Health, Università Degli Studi di Milano, Via Vanzetti 5, 20133 Milan, Italy.
Objectives:
Monitoring socio-economic inequality has become a priority for many governments, especially after the socio-economic changes that followed the 2008 financial crisis. This study aimed at detecting the causes of death with the largest socio-economic inequality in relative and absolute terms in Italy.
Study Design:
This is a historical cohort study.
Methods:
We used two regression-based measures of socio-economic inequality, the relative index of inequality (RII) and the slope index of inequality (SII), to rank the causes of death with the highest relative and absolute socio-economic inequality. We obtained these measures on a large census-based cohort study with more than 35 million individuals and 452,273 deaths registered in the period 2012-2014.
Results:
The causes with the highest relative socio-economic inequality were the following: laryngeal cancer (RII: 6.1, 95% confidence interval [CI]: 4.8-7.78), AIDS/HIV (RII: 4.8, 95% CI: 3.1-7.4), chronic liver disease (RII: 4.8, 95% CI: 3.2-7.3), and chronic lower respiratory diseases (RII: 4.8, 95% CI: 3.5-6.5) in men, and diabetes (RII: 6.2, 95% CI: 4.8-7.9), AIDS/HIV (RII: 4.5, 95% CI: 2.7-7.7), genitourinary system (RII: 3.8, 95% CI: 2.6-5.4) and chronic liver diseases (RII: 3.6, 95% CI: 2.9-4.5) in women. In absolute terms, lung cancer and ischemic heart diseases contributed more to the overall socio-economic inequality in men, whereas diabetes and ischemic heart diseases accounted for most of the socio-economic inequality in women.
Conclusions:
Our findings call for effective policies to reduce the disparities in mortality from ischemic heart diseases, lung cancer, and diabetes taking into account the sex-specific pattern of inequality.
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