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Revista médica de Chile

Print version ISSN 0034-9887


CASTILLO, César del SM. et al. Impact of the Chilean Explicit Guaranties Health System (GES) on breast cancer treatment. Rev. méd. Chile [online]. 2017, vol.145, n.12, pp.1507-1513. ISSN 0034-9887.


Breast cancer is the most common malignant tumor in women in the world. In 2005, it was incorporated to the Explicit Guaranties Health System (GES) in Chile.


To describe the demographic and clinical characteristics of breast cancer patients and to determine the effect of incorporating these women to GES.

Material and Methods

Medical records of 5,119 women with breast cancer aged 59 ± 14 years, attended at six public hospitals between 2000 and 2010 were reviewed. Median follow up was 87 months (range 1-182). Mortality was assessed using death certificates obtained at the National Identification Registry.


Sixty six percent of women were in stage I-II, 29% in stage III and 5% in stage IV. Surgery was performed in 4023/5119 cases (79%), adyuvant radiotherapy in 3627/4517 cases (80%), chemotherapy in 3,204/3,424 cases (94%) and hormone therapy in 1,695/2,375 cases (71%). Between 2000 and 2010, there was a significant increase in the proportion of cases in stage I, from 8% to 25%, (p < 0.01). Overall survival (OS) increased 1% per year, since the beginning of GES system (p = 0.024). Five year OS was 75.1%. The figures for Stage I, II, III and IV were 93, 84, 62 and 27% respectively (p < 0.01). Patients without lymph node involvement and who were not triple negative, had a significantly better OS.


There was a significant increase in stage I cases, and a 1% per year OS improvement after GES system started, compared with the previous period.

Keywords : Breast Neoplasm; Chile; Therapeutics; Triple Negative Breast Neoplasm.

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