From the comprehensive RSF analysis with all 40 variables, 14 variables were selected to be predictive for 1-year mortality, including cardiac arrest, BUN, BMI, AST, age, SCR, BR, K, WBC, ALT, NA, CKPK, class II agents, and glucose (the detailed minimal depths of all variables can be seen from Figure 1, in which 14 predictive variables were separated from the remaining nonpredictive variables by the horizontal line). The gene discussed is GPT; the disease is cardiac arrest.