Table 1.
Patient characteristics, body composition, biochemical parameters at baseline.
| Variables | Total (N = 370) | Survival (N = 325) | Death (N = 45) | p-value 1 |
|---|---|---|---|---|
| Age, years | 60.7 ± 11.9 | 60.0 ± 11.8 | 66.0 ± 12.0 | 0.002 |
| Gender, male | 208 (56.2) | 179 (55.1) | 29 (64.4) | 0.235 |
| Hemodialysis vintage, year | 5.7 ± 4.9 | 5.9 ± 5.1 | 4.4 ± 2.9 | 0.060 |
| CCI | 4.7 ± 1.6 | 4.6 ± 1.5 | 5.5 ± 1.6 | <0.001 |
| PA, MET-min/wk | 4964.9 ± 1871.9 | 5082.6 ± 1872.4 | 4114.2 ± 1651.4 | 0.001 |
| BMI, kg/m2 | 23.6 ± 3.9 | 23.6 ± 3.9 | 23.0 ± 3.5 | 0.348 |
| Body composition | ||||
| FFM, kg | 44.1 ± 11.1 | 44.0 ± 11.1 | 45.1 ± 9.1 | 0.507 |
| BFM, kg | 17.9 ± 8.3 | 18.1 ± 8.5 | 16.4 ± 7.4 | 0.212 |
| Laboratory parameters | ||||
| hs-CRP, mg/dL | 0.25 (0.11–0.60) | 0.24 (0.10–0.52) | 0.52 (0.16–1.00) | 0.003 |
| Hgb, g/dL | 10.7 ± 1.1 | 10.8 ± 1.1 | 10.5 ± 1.3 | 0.174 |
| FBG (mg/dL) | 132.3 ± 58.4 | 131.9 ± 59.0 | 135.5 ± 54.9 | 0.697 |
| Insulin, µU/mL | 17.1 (8.8–31.7) | 17.9 (9.0–32.3) | 14.4 (7.2–28.0) | 0.165 |
| TG (mg/dL) | 159.6 ± 111.9 | 162.8 ± 115.2 | 136.3 ± 81.5 | 0.137 |
| HDL-C (mg/dL) | 39.9 ± 22.0 | 39.3 ± 21.8 | 43.9 ± 23.1 | 0.204 |
| LDL-C, mg/dL | 100.3 ± 31.7 | 101.1 ± 32.1 | 94.8 ± 28.2 | 0.212 |
| TC, mg/dL | 165.6 ± 35.2 | 166.2 ± 35.0 | 160.9 ± 36.4 | 0.347 |
| Ca, mg/dL | 9.3 (8.9 – 9.7) | 9.3 (8.7–9.7) | 9.3 (9.0–9.7) | 0.463 |
| PO4, mg/dL | 5.2 ± 1.2 | 5.2 ± 1.2 | 5.0 ± 1.3 | 0.381 |
| iPTH, pg/mL | 254.0 (95.9–450.8) | 266.5 (103.9–451.3) | 139.4 (53.0–407.0) | 0.063 |
| Hcy, µmol/L | 20.7 ± 6.7 | 20.6 ± 6.6 | 21.2 ± 7.6 | 0.616 |
| Albumin, g/dL | 4.0 ± 0.4 | 4.0 ± 0.4 | 3.9 ± 0.4 | 0.229 |
| Pre-BUN, mg/dL | 72.8 ± 19.7 | 72.8 ± 20.2 | 73.4 ± 16.0 | 0.829 |
| Creatinine, mg/dL | 11.1 ± 2.2 | 11.2 ± 2.2 | 10.2 ± 1.5 | 0.005 |
| K, mEq/L | 4.8 (4.3–5.2) | 4.8 (4.3–5.2) | 4.8 (4.3–5.2) | 0.876 |
| Uric acid, mg/dL | 7.3 ± 1.3 | 7.3 ± 1.3 | 6.8 ± 1.2 | 0.009 |
| eKt/V | 1.6 ± 0.3 | 1.6 ± 0.3 | 1.5 ± 0.2 | 0.038 |
CCI, Charlson comorbidity index; PA, physical activity; MET, metabolic equivalent minute/ week; BMI, body mass index; FFM, fat free mass; BFM, body fat mass; CRP, high-sensitivity C-reactive protein; Hgb, hemoglobin; FBG, fasting blood glucose; TG, triglyceride; HDL-C, high density lipoprotein cholesterol; LDL-C, low density lipoprotein cholesterol; TC, total cholesterol; Ca, serum calcium; PO4, serum phosphate; iPTH, intact parathyroid hormone; Hcy, homocysteine; Pre-BUN, pre-dialysis blood urea nitrogen; K, serum potassium; eKt/V, equilibrated Kt/V (dialysis adequacy).1 Data was presented as mean ± SD, median (interquartile range), percentage for normal distributed, non-normal distributed continuous variables, and categorical variables, appropriately. p values were calculated to compare the distribution of patients’ characteristics, body composition, and biochemical parameters between the survival and the death, using independent-samples T test, Mann-Whitney U test, or Chi-square test, appropriately.