Baseline clinical and laboratory parameters of study population
PEW, wasting, interdialytic weight gain
WASTING
The mean serum albumin and prealbumin levels were 3 ± 0.28 g/dl and 11.7 ± 3.7 mg/dl, respectively. Patients in the CG exhibited significantly higher baseline interdialytic weight gain (IDWG) and mildly higher serum prealbumin levels, whereas patients in the IG had mildly higher nPNA. Other baseline clinical and laboratory parameters did not differ significantly between the groups. Forty-eight patients in our cohort had severe wasting (PEW score of 0–1), 11 had moderate wasting (PEW score of 2), and one patient had slight wasting (PEW score of 3). No significant differences were found between the PEW scores of the two groups at the start of the study (Table 
Baseline characteristics of the study populationAbbreviations: nPNA: normalized protein nitrogen appearance, PEW: protein energy wastingFrench PEW score: 4 (normal nutritional status), 3 (slight wasting), 2 (moderate wasting), 0–1 (severe wasting)