Objective:

To provide estimates of 2-year overall cancer survival for stomach, breast (women only), cervical, and colorectal cancers in the Colombian National Cancer Institute (INC).

Methods:

A survival analysis was performed on data from patients with invasive stomach cancer (SC), breast cancer (BC), cervical cancer (CC), and colorectal cancer (CRC) treated in the INC in the year 2012. Data were taken from the hospital cancer register and the deaths register from the INC and government sources. Frequencies and measures of central tendency and dispersion were calculated. The overall survival at two years from the date of admission was estimated using Kaplan-Meier methods and was compared using the Log-rank Test.

Results:

A total of 1,793 cancer cases were analysed. The estimated survival at two years for the 2012 cohort was 29.4% (95% CI 24.9 - 33.9) for SC; 80.8% (95% CI: 77.9 - 83.7) for BC; 62.3% (95% CI: 57.0 -67.6) for CC, and 54.1% (95% CI 49.0 - 59.2) for CRC. The median survival time could only be determined for SC, and was 9.6 months.

Conclusions:

Two year survival at INC was highest for BC, and very low for SC, and were within expectations compared to the literature. These data provide a reference on the prognosis for these cancers in Colombia, and as a baseline for monitoring overall cancer survival. The trends in survival over time may indicate advances in care.

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