1. Unintended weight loss –Multivariate:Malnutrition (UWL) and Hb level independently influenced physical (p = 0.002; p = 0.005), role (p = 0.004; p = 0.001), and social functions (p = 0.024; p = 0.009).2. PG-SGA score –Mean ± SD = 3 ± 2 & 9 ± 5 respectively for non-malnourished & malnourished patients, p < 0.001. This evidence concerns the gene GSTM1 and malnutrition.