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Objective: to provide and compare estimations of two-year overall survival for cervical and female breast cancer in three cohorts (first treated in 2007, 2010, 2012) at the Instituto Nacional de Cancerología of Colombia

Methods: All patients first treated at the Instituto Nacional de Cancerología for breast or cervical cancer in the years 2007, 2010, 2012, without a prior cancer diagnosis, were included for the study. The hospital-based cancer registry was crosslinked with governmental databases to obtain follow-up information on all patients. Probability of surviving 24 months since the date of entry at the hospital was estimated using Kaplan-Meier methods, using the log-rank test to evaluate differences between groups.

Results: We analyzed 1,928 breast cancer cases and 1,189 cervical cancer cases, resulting in an overall survival probability at 24 months of 79.6% (95% CI: 77.8-81.4) for BC and of 63.3% (95% CI: 60.6- 66.0) for cervical cancer, there were no differences in survival for year of entry. Advanced clinical stage substantial affected overall survival, being 32.2% (95% CI: 28.4-44.0) for stage IV breast cancer and 22.6% (95% CI: 11.4-33.8) for stage IV cervical cancer.

Conclusions: Breast cancer was the cancer with the best survival at Instituto Nacional de Cancerología; cervical cancer the one with the lowest survival. Overall survival did not change over the years for any of the cancers.

Constanza Pardo, Cancer Surveillance Group, Instituto Nacional de Cancerología, Bogota, Colombia

Coordinadora, grupo vigilancia epidemiologica

Esther de Vries, Departamento de Epidemiología Clínica y Bioestadística, Pontificia Universidad Javeriana, Bogotá, Colombia

Profesor Asociado, Dpto de Epidemiología Clínica y Bioestadística
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Received 2017-01-11
Accepted 2018-03-06
Published 2018-04-10

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