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Revista Colombiana de Cancerología
versión impresa ISSN 0123-9015
Resumen
PARDO, Constanza; TRUJILLO, Lina María; BUITRAGO, Lina Angélica y VRIES, Esther de. Survival of patients with epithelial ovarian cancer, results of the hospital-based cancer registry of the National Cancer Institute (2005-2014). rev.colomb.cancerol. [online]. 2019, vol.23, n.3, pp.82-91. Epub 26-Oct-2019. ISSN 0123-9015. https://doi.org/10.35509/01239015.36.
Aims:
To provide demographical and clinical characteristics and estimations of 3-year overall survival of epithelial ovarian cancer (EOC) patients treated at the Colombian National Cancer Institute (INC) between 2005 and 2014.
Methods:
All 783 patients first treated at INC for EOC in the three periods: (2005-2008, 2009-2011, 2012-2014), without a prior cancer diagnosis, were included in this study. Follow-up was realized by cross-linkage with governmental databases using person identification numbers. Probability of surviving 36 months since the date of entry at INC was estimated using Kaplan-Meier methods, using the log-rank test to evaluate differences between groups. We used multivariate Cox proportional hazard models to evaluate the relative effect of age, clinical stage, histological subtype and treatment first on survival.
Results:
The overall survival probability at 36 months was 56.5% (95% CI: 53.0, 60.0), which was stable over time. Advanced age and clinical stage significantly affected 3-year overall survival, being 49.5°% (95°% CI: 43.4, 55.6) for age > 59, 21.9°% (95°% CI: 14.7, 29.2) for stage IV disease and 56.3% (95% CI: 37.5, 54.3) for serous tumors. Hazard ratios were significantly higher for patients aged 59 and over (HR 1.54 (95%CI 1.04-2.27)) and advanced stage cancers (HR 13.47 (95%CI 7.92-22.92)), whereas patients with surgery plus chemotherapy had a strongly reduced risks compared to other treatments (HR 0.84 (95%CI 0.52-1.36)).
Conclusions:
Survival of epithelial ovarian cancer was stable over time, with a variation according to age, clinical stage and first treatment.
Palabras clave : Carcinoma, Ovarian Epithelial; Histology; Survival; Hospital-based cancer registry; Colombia.