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Revista colombiana de Gastroenterología

versión impresa ISSN 0120-9957

Resumen

OTERO R, William; RODRIGUEZ, Álvaro  y  GOMEZ Z, Martín. Comparison of the prevalences of gastric and colorectal cancer at two endoscopy units in different socioeconomic strata. Rev Col Gastroenterol [online]. 2013, vol.28, n.1, pp.18-26. ISSN 0120-9957.

Introduction: Based on the differences in incidence and mortality rates of gastric cancer (GC) and colorectal cancer (CRC) in the world, in the same country, and in the same cities, we compared the prevalence of these tumors into two endoscopy units serving different types of populations. Materials and methods: We conducted an analytical study of prevalence among patients over the age of 18 who had undergone upper endoscopy and colonoscopy between December 2006 and January 2011. All had been diagnosed with cancer through endoscopy and diagnoses of gastric or colorectal adenocarcinomas and sporadic tumors had been histologically confirmed. Results: Of 38,118 endoscopic procedures performed, 483 cases met the selection criteria. We found five times more occurrences of gastric cancer in the Hospital El Tunal than in the Clinica Fundadores (2.41% vs 0.47% (p <0.001). In contrast, we found 2.5 times more occurrences colorectal cancer at the Clinica Fundadores than we did at the Hospital El Tunal (1.02% vs 2.47% (p <0.001). Bivariate and multivariate analysis found statistically significant associations with the higher presence of GC in Strata 1 and 2 (59.7%) and CRC in strata 3 to 6 (79%) (By law Colombia is divided into 6 strata according to income per capita. Stratum one has the lowest per capita income, and Stratum 6 has the highest). Conclusions: The prevalence of GC is five times higher in low income groups than in higher income economic groups while CCR prevalence is 2.5 times higher in the upper strata

Palabras clave : Gastric cancer; colorectal cancer; prevalence; socioeconomic.

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