In addition, Kaplan-Meir survival estimator for composite of death, anemia (Hb < 100 g/L) and residual paravalvular regurgitation higher than mild showed that at follow-up of 2.45 years, freedom from event in the “Catheter” group was 77%, compared to 67% in the “Surgical” group (Log rank, p = 0.636, shown in the central image). This evidence concerns the gene GSTM1 and anemia.