Overall survival on patients affected by HCC (Hepatocellular carcinoma, a type of liver cancer)

Medical statistic on a sample of about 200 patients affected by HCC aimed to find the overall survival (Kaplan Maier method) of these patients in relation to the stage of the disease, etiology and some risk factors.
The work comprises also the multivariate analysis of the following variables: sex, age, etiology, risk factors and BCLC.