Conversely, positive correlations were observed between SMA and both hemoglobin (Hb) (ρ = 0.31, p = 0.0052) and hematocrit (Ht) (ρ = 0.29, p = 0.0109), reinforcing the idea that a higher muscle mass is associated with improved hematologic profiles in lung cancer patients. Here, GSTM1 is linked to lung cancer.