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Results

Dialysis vintage< 2 years. Hemodialysis patients were older (65.5±18.5 vs. 50.9±17.1; p< 0.01) with a higher mortality (28 vs. 1; p< 0.01) and OH (8.0±4.3 vs. 1.6±3.1; p< 0.001). Hemoglobin (10.6±1.5 vs. 11.8±1.7; p< 0.05), TChol (180.2±47.0 vs. 211.7±46.3; p< 0.05), DD (871±729 vs. 1695±960; p< 0.001) and LTM (46.5±12.9 vs. 53.8±14.4; p< 0.05) were lower on HD. Dialysis vintage 2–4 years: when compared to PD, HD patients had higher OH (11.7±5.9 vs. 2.1±3.2; p< 0.001) and lower Hb (10.8±1.5 vs. 11.9±1.4; p< 0.01). Dialysis vintage> 4 years: compared to PD, HD patients had higher LTM (44.3±11.7 vs. 38.6±7.9; p< 0.05) and lower FAT (34.4±11.1 vs. 42.8±6.4; p< 0.01).

Conclusions

Dialysis patients’ body composition depends on dialysis modality and DV. Dialysis vintage< 2 years is associated with better hydration, nutritional state, and survival in PD patients, but longer DV reduces these benefits. Dialysis vintage> 4 years associated with similar hydration and mortality in both PD and HD while body composition was better on HD.