Incidence of Esophageal Cancer in Iran, a Population-Based Study: 2001-2015

Purpose Even though Kurdistan, the western province of Iran, has a cancer surveillance system, a detailed analysis of incidence rate has not been yet performed. We describe Age Standardized Incidence Rates (ASRs) for esophageal cancer (EC) in Kurdistan Province of Iran in 2001-2015. Methods Incidence cases of EC were obtained from a population-based cancer registry. We obtained ASRs and 95% confidence intervals (CI) per 100,000 populations for each calendar year group. Results Between 2001 and 2015, 1362 incidence cases with EC were reported to the cancer registry. Annual ASRs in 2006-2010 were more than the other years in both men and women, respectively. Most ASRs were reported among women in Divandarreh (18.95, 95% CI 14.76, 23.92), Saqez (12.75, 95% CI 10.73, 15.01), Sanandaj (8.84, 95% CI 7.64, 10.17), and Qorveh (8.19, 95% CI 6.54, 10.12), and among men in Divandarreh (19.38, 95% CI 15.38, 24.06), Saqez (13.64, 95% CI 11.49, 16.05), Sanandaj (8.70, 95% CI 7.56, 9.96), and Marivan (7.93, 95% CI 6.26, 9.88). Conclusions It was concluded that EC in Divandarreh, Saqez, and Sanandaj has the highest ASRs, and these areas are considered as high-risk areas for this disease in the Iranian province of Kurdistan. Therefore, to understand the reasons of these problems, a considerable work is needed.