Table 1 Baseline characteristics of participants from training set
Characteristics | PEW of training set(n = 448) | P value | |
|---|---|---|---|
No(n = 339,75.7%) | Yes(n = 109,24.3%) | ||
Sex | |||
Male | 187(55.2%) | 55(50.5%) | 0.237 |
Female | 152(44.8%) | 54(49.5%) | |
Age, y | 53.49 ± 13.29 | 56.37 ± 14.16 | 0.014* |
Dialysis modality | |||
Peritoneal dialysis | 177(52.2%) | 58(53.2%) | 0.890 |
Hemodialysis | 162(47.8%) | 51(46.8%) | |
Dialysis duration, m | 36.5(17.8,64.3) | 37.0(18.0,67.0) | 0.977 |
SGA | |||
Yes | 40(11.8%) | 30(27.5%) | < 0.001** |
No | 299(88.2%) | 79(72.5%) | |
Albumin, g/L | 40.77 ± 3.92 | 37.64 ± 4.07 | < 0.001** |
Prealbumin, g/L | 40.30 ± 9.11 | 33.97 ± 0.46 | < 0.001** |
Cholesterol, mmol/L | 4.29 ± 1.09 | 3.48 ± 1.02 | < 0.001** |
Triglyceride, mmol/L | 1.86(1.26,2.66) | 1.33(0.94,2.00) | < 0.001** |
nPCR, g/(kg·d) | 1.03 ± 0.32 | 0.84 ± 0.31 | < 0.001** |
C-reactive protein, mg/L | 1.61(0.53,4.35) | 1.97(0.61,7.33) | 0.038* |
Serum creatinine, µmol/L | 929.67 ± 278.77 | 862.72 ± 278.23 | 0.005** |
Kt/V | 1.83 ± 0.48 | 1.79 ± 0.53 | 0.381 |
Hemoglobin, mg/L | 106.87 ± 14.13 | 102.90 ± 15.72 | 0.002** |
Urea nitrogen, mmol/L | 23.62 ± 6.03 | 21.84 ± 6.51 | 0.001** |
Calcium, mmol/L | 2.27 ± 0.23 | 2.22 ± 0.21 | 0.022* |
Phosphorus, mmol/L | 1.80 ± 0.48 | 1.73 ± 0.53 | 0.072 |
Parathyroid hormone, pg/mL | 283.3(154.0,451.0) | 272.5(138.1,480.0) | 0.398 |
Serum iron, µmol/L | 12.1(9.4,15.3) | 10.2 (7.7,14.2) | < 0.001** |
Ferritin, pg/mL | 165.1(73.3,364.6) | 130.4(51.4,300.9) | 0.007** |
Arm circumference, cm | 27.49 ± 4.23 | 25.23 ± 2.94 | < 0.001** |
AMC, cm | 22.27 ± 2.71 | 20.71 ± 1.98 | < 0.001** |
TST, mm | 16.24(12.74,19.75) | 13.38(10.67,17.52) | < 0.001** |
BMI, kg/m2 | 22.42 ± 3.33 | 19.87 ± 2.54 | < 0.001** |
FFM, kg | 41.2(31.0,51.6) | 39.7(27.1,51.1) | 0.333 |
FAT, kg | 18.45(11.05,31.95) | 16.30(9.00,27.10) | 0.068 |
BFP, % | 28.77(18.22,47.67) | 26.28(19.22,43.84) | 0.739 |
BCM, kg | 28.24 ± 7.17 | 26.23 ± 6.63 | 0.001** |
Water ratio(ECW/TBW),% | 38.73 ± 2.78 | 40.50 ± 4.96 | < 0.001** |
ECW, kg | 12.87 ± 4.40 | 14.27 ± 7.69 | 0.019* |
SLM, kg | 41.40 ± 10.25 | 38.41 ± 9.52 | 0.001** |
VFA, cm2 | 55.5(32.7,78.4) | 47.4(27.9,66.8) | 0.002** |
Impedace, Ω | 1005.64 ± 187.51 | 1030.94 ± 208.70 | 0.160 |
Phase angle, ° | 6.34 ± 2.17 | 5.47 ± 1.61 | < 0.001** |