Socioeconomic Inequalities in Cancer Incidence: A Comparative Investigation Based on Population of Iranian Provinces.

Cancer is the second important cause of death worldwide. Cancer is one of the top health priorities in Iran. We aimed to study the socio-economic inequality of cancer incidence in Iran provinces. We conducted this cross-sectional study using provincial data. We obtained the required data from the statistical yearbook report, the Statistics Center Report and the National Cancer Registration Program Report of Iran's Ministry of Health and Medical Education (MoHME) for 2018. Socio-economic inequality of cancer incidence was analyzed by estimating the concentration index and extracting the concentration curve. Statistical analyzes were performed using STATA 14. Our findings revealed that cancer incidence was unequally distributed in terms of the socio-economic status in Iranian provinces. Cancer incidence is slightly concentrated in the provinces with higher than average literacy, per capita income and insurance coverage and household size below average. The concentration of cancer incidence has been to the detriment of the provinces that have a slightly better ranking in terms of the socio-economic index. The employment rate did not significantly affect cancer's distribution burden. We recommend policymakers facilitate early cancer detection by providing insurance coverage for screening services, payment exemptions, and public awareness.