Abstract 24: Comparison Between the White Skin Color Distribution on the Brazil and Diagnoses of Nonmelanoma Skin Cancer

Abstract

Purpose: According to the National Institute of Cancer (INCA), people with lighter skin tone have a higher chance of being stricken by Nonmelanoma skin cancer. Still, according to the same institute, this cancer is the most frequent tumor for both genders in Brazil. Therefore, it’s important to measure how impactful this risk factor is in Brazil. Methods: In this analysis, the data about the diagnosis of nonmelanoma skin cancer between the years of 2013 to 2021 in the different regions of Brazil was captured using the DATASUS Oncology Panel as data source, through the TABNET system. Also the data about the resident population of each region by color and race uncovered in the last census realized by the Brazilian Institute of Geography and Statistic (IBGE) in 2010 has been collected. This information has been correlated with the statistics about the tumor, using the Pearson coefficient as the method to measure the relation between these two variables. Results: The region that has the highest number of white people is the southeast region, with 44.152.518 people, followed by the south, with 21.456.204. The region with the lowest number of white habitants is the north region, with 3.686.144 individuals. The number of diagnoses of nonmelanoma skin cancer between the years of 2013-2021 follows a similar logic, with the highest number of cases in the southeast and south region (88.851 and 70.046 respectively). In this way, correlating both variables it has been found a determination coefficient (r2) of 0.943 and a p-value= 0.016, that demonstrate the significance of the relation. Conclusion: It’s evident that a direct relation between the number of nonmelanoma skin cancer diagnoses and the population of white skin per location in Brazil exists, as indicated by relevant value of the determination coefficient founded (r2 = 0.943), as well as the p-value < 0.05. So, the data show that, in Brazil, the lighter skin tone is an important risk factor associated with the tumor referred to, being this information important to subsidize future campaigns to prevent the disease. Citation Format: Arthur Minas Alberti, Lucas Kieling, Pedro Antonio Paludo Menna Barreto, Pedro Arthur Zimmer Silveira, Rafaela de Andrade, Fernando Azambuja, Luiza Seixas de Sá Beltramo, Gabriele Eckerdt Lech, Laura Tibola Marques da Silva, Maria Eduarda Corrêa Pereira. Comparison Between the White Skin Color Distribution on the Brazil and Diagnoses of Nonmelanoma Skin Cancer [abstract]. In: Proceedings of the 11th Annual Symposium on Global Cancer Research; Closing the Research-to-Implementation Gap; 2023 Apr 4-6. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(6_Suppl):Abstract nr 24.