In Kaplan–Meier analysis, Hb (HR 0.20; 95% CI 0.07–0.55; P = 0.005), MTVtotal (HR 5.03; 95% CI 1.51–16.75; P < 0.001), sarcopenia (HR 0.34; 95% CI 0.12–0.94; P = 0.0495) and FIGO stage (HR 12.25; 95% CI 4.44–33.78; P = 0.002) were significantly associated with OS. This evidence concerns the gene GSTM1 and sarcopenia.