Decomposition of socioeconomic inequality in COVID‐19 mortality in Iran: A retrospective cohort study

This study aimed to investigate the relationship between socioeconomic status and COVID‐19 mortality in Iran. We performed a retrospective cohort study on data from the hospitalised COVID‐19 patients in Qazvin. We collected data on education, self‐reported socioeconomic status, and location of residence as a proxy for socioeconomic status (SES). We applied the Blinder‐Oaxaca decomposition approach to assess the role of socioeconomic inequality in COVID‐19 mortality and determine the main contributors to the observed inequality. Overall, 941 patients (48.96%) had low SES, while only 24.87% (n = 478) were classified in the high SES category. The mortality rate was significantly higher in the low SES group, and we spotted a 17.13% gap in COVID‐19 mortality between the high and low SES patients (p