RESUMO
OBJECTIVE: To determine 5-year survival in patients with colorectal cancer (CRC) according to patient and tumor characteristics. METHODS: Longitudinal study based on incident cases of invasive CRC between 2008 and 2017 captured by the Manizales Population-based Cancer Registry (n=850). Patients were followed up to August 24th, 2021. Cause-specific survival and net survival were calculated for sociodemographic and tumor characteristics, and Cox multivariate was fitted. RESULTS: Fifty-five percent of cases occurred in women. The most frequent histological type was adenocarcinoma (78.2%). The most frequent locations were rectum (32.0%), ascending colon (16.6%), and sigmoid (16.2%). Twenty-five percent of cases were diagnosed in stage IV. There were 567 deaths due to CRC. The 5-year specific survival was 45.8% (95%CI 42.4-49.3), with independent effects for age (HR=1.83; 95%CI 1.26-2.65 age >75 years vs. <50 years) and advanced clinical stage (HR=2.5 and HR 5.7 for stages III and IV vs. stage I, respectively). Lower survival was observed in patients of medium socioeconomic status compared with higher socioeconomic status (HR=1.52; 95%CI 1.08-2.14), but not in patients of low socioeconomic status. No independent effects were observed for the health insurance regime. CONCLUSIONS: In Manizales, approximately 5 out of 10 patients with invasive CRC die in the first five years after diagnosis, with a lower survival in patients older than 75 years, from medium socioeconomic level and diagnosed in advanced clinical stages.
Assuntos
Neoplasias Colorretais , Seguro Saúde , Humanos , Feminino , Idoso , Colômbia/epidemiologia , Estudos Longitudinais , BrasilRESUMO
ABSTRACT Objective: To determine 5-year survival in patients with colorectal cancer (CRC) according to patient and tumor characteristics. Methods: Longitudinal study based on incident cases of invasive CRC between 2008 and 2017 captured by the Manizales Population-based Cancer Registry (n=850). Patients were followed up to August 24th, 2021. Cause-specific survival and net survival were calculated for sociodemographic and tumor characteristics, and Cox multivariate was fitted. Results: Fifty-five percent of cases occurred in women. The most frequent histological type was adenocarcinoma (78.2%). The most frequent locations were rectum (32.0%), ascending colon (16.6%), and sigmoid (16.2%). Twenty-five percent of cases were diagnosed in stage IV. There were 567 deaths due to CRC. The 5-year specific survival was 45.8% (95%CI 42.4-49.3), with independent effects for age (HR=1.83; 95%CI 1.26-2.65 age >75 years vs. <50 years) and advanced clinical stage (HR=2.5 and HR 5.7 for stages III and IV vs. stage I, respectively). Lower survival was observed in patients of medium socioeconomic status compared with higher socioeconomic status (HR=1.52; 95%CI 1.08-2.14), but not in patients of low socioeconomic status. No independent effects were observed for the health insurance regime. Conclusions: In Manizales, approximately 5 out of 10 patients with invasive CRC die in the first five years after diagnosis, with a lower survival in patients older than 75 years, from medium socioeconomic level and diagnosed in advanced clinical stages.
RESUMEN Objetivo: Estimar la supervivencia a 5 años en pacientes con cáncer colorrectal (CCR) según características del paciente y del tumor. Métodos: Estudio longitudinal a partir de los casos de CCR invasivo diagnosticados entre 2008 y 2017 captados por el Registro Poblacional de Cáncer de Manizales (n=850). Se realizó seguimiento hasta el 24 de agosto de 2021. Se calculó la supervivencia causa-específica y la supervivencia neta para las características sociodemográficas y del tumor, y análisis multivariado de Cox. Resultados: El 55,5% de los casos se presentaron en mujeres. El tipo histológico más frecuente (78,2%) fue el adenocarcinoma. Las localizaciones más frecuentes fueron recto (32,0%), colon ascendente (16,6%) y sigmoides (16,2%). El 25,5% de los casos fue diagnosticado en estadio IV. Ocurrieron 567 muertes por CCR. La supervivencia específica a 5 años fue del 45,8% (IC95% 42,4-49,3), con efectos independientes para la edad (HR=1,83; IC95% 1,26-2,65 edad >75 años vs. edad <50 años) y el estadio clínico avanzado (HR=2,5 y HR 5,7 para estadios III y IV vs. estadio I). Se observó una menor supervivencia en pacientes de nivel socioeconómico medio en comparación con el grupo de mayor posición socioeconómica (HR=1,52; IC95% 1,08-2,14), pero no en los pacientes de posición socioeconómica baja. No se observaron efectos independientes para el régimen de aseguramiento en salud. Conclusiones: En Manizales, aproximadamente 5 de cada 10 pacientes con CCR invasivo fallecen en los primeros cinco años del diagnóstico, con sobrevida menor en pacientes mayores de 75 años, de nivel socioeconómico medio y diagnosticados en estadio clínico avanzado.