Recovery from anemia (Hb-recovery, Hb-R) occured in 49 out of 124 anemic patients (40%) at 1 year after TAVI (Figure 2D–F, Table 2) with an increase in mean Hb-level of Δ 1.35 g/dL from baseline in this subgroup (P<0.001; Figure 2D–E). Here, GSTM1 is linked to anemia.