Income and incidence of lung cancer in the capital of an upper-middle country

Abstract Background: Worlwide lung cancer is the leading cause of cancer related death. Research has revealed significant socioeconomic disparities in lung cancer; generally people from lower socio-economic status exhibit higher cancer incidence and poorer cancer survival. . Data on how socioeconomic disparities influence the incidence of lung cancer in Latin America is scarce. We evaluated the association of economic income with the incidence of lung cancer in Peru's capital city. Methods: This is a retrospective ecologic study with newly diagnosed lung cancer between two periods 2010-2012 and 2013-2015 reported in the Lima metropolitan Cancer Registry (Peru). The economic income was obtained from the National household survey conducted in 2012 and 2015, respectively.. To assess the statistical relationship between both variables, Pearson's correlation coefficient was performed. A p value < 0.05 was used to define significant association Results: Lima has 49 districts, including Callao. In the period 2010-2012, lung cancer incidence was 11.24 (median 10.36). La Punta and Carabayllo were the districts with highest and the lowest lung cancer incidences with 27.39 and 6.09, respectively. Regarding the economic income, the median was 230 dollars. La Punta (median 728.5) and Rimac (median 73.5) were the districts with the highest and lowest income, respectively. The Pearson`s correlation coefficient was 0.637 and the p value showed a significant association (p 0.0001) and the . In the analysis by sex, lung cancer incidence in women had no significant association with economic income (p 0.084) while lung cancer incidence in males was highly and positively and associated with economic income (p 0.0001; r 0.72). In the period 2013-2015, lung cancer incidence was 11.26 (median 11.21). Miraflores (26.53) and Ventanilla (5.01) were the districts with highest and the lowest incidences, respectively. The median economic income was 285.7 dollars. San Isidro was the district with the highest economic income (median 857) and Cineguilla (median 92.8) the one with the lowest one. The Pearson`s correlation coefficient was 0.501 and the p value showed a significant association (p 0.001). In the analysis by sex, lung cancer incidence in women had no a significant association with economic income (p 0.11) while lung cancer incidence in males exhibited a moderate positive association (p 0.03; r 0.471). Conclusion: In both periods, high economic income showed a positive association with lung cancer incidence. This finding was driven by lung cancer incidence in males as no a significant association was found in women. The reasons behind this finding need to be further studied. Citation Format: Katia Roque, Nanto Caparachin, Melanie Castro-Mollo, Marco Galvez-Nino, Rossana Ruiz, Ofelia Coanqui, Natalia Valdivieso, Mivael Hurtado de Mendoza, Edgar Amorin, Ebert Poquioma, Jose Cruzado, Luis Mas. Income and incidence of lung cancer in the capital of an upper-middle country [abstract]. In: Proceedings of the 15th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2022 Sep 16-19; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2022;31(1 Suppl):Abstract nr C076.