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Table 4 Demographic and clinical characteristics of low sodium or high sodium patients

From: Low serum sodium concentration is a prognostic factor related to current blood glucose level in stable hemodialysis patients: an observational study

  Low < 139.9 High ≥ 139.9 P
Number of patients 274 357 N/A
Deaths during follow-up, n (%) 108 (39.4%) 86 (24.1%) < 0.001
Deaths in cardiovascular disease, n (%) 49 (17.9%) 23 (6.4%) < 0.001
Age, years 60.6 ± 12.7 61.5 ± 11.7 0.387
Female, n (%) 89 (32.5%) 147 (41.2%) 0.025
Diabetic nephropathy, n (%) 80 (29.2%) 46 (12.9%) < 0.001
Hemodialysis duration, months 107.4 ± 83.8 112.3 ± 88.0 0.480
Body mass index, kg/m2 21.9 ± 3.3 22.4 ± 3.2 0.114
Kt/V 1.50 ± 0.24 1.51 ± 0.27 0.887
Cumu. mean predia. β2-M, mg/L 29.1 ± 5.4 28.4 ± 5.2 0.113
Normalized PCR, g/kg/day 1.01 ± 0.19 1.01 ± 0.17 0.688
Creatinine generation rate, % 97.7 ± 21.8 103.0 ± 22.2 0.003
WBC count, 103/μL 6.32 ± 1.86 5.92 ± 1.75 0.006
Hemoglobin, g/dL 10.5 ± 1.2 10.6 ± 1.1 0.239
Hematocrit, % 32.2 ± 3.8 32.6 ± 3.4 0.111
Platelet count, 103/μL 199.8 ± 61.7 187.2 ± 52.1 0.006
Albumin, g/dL 3.62 ± 0.36 3.70 ± 0.32 0.003
Urea nitrogen, mg/dL 75.1 ± 17.1 75.4 ± 15.0 0.834
Uric acid, mg/dL 7.59 ± 1.25 7.83 ± 1.11 0.011
Creatinine, mg/dL 11.2 ± 2.7 11.6 ± 2.9 0.064
Mean predialysis sodium, mEq/L 137.3 ± 1.9 141.9 ± 1.3 < 0.001
Potassium, mEq/L 4.93 ± 0.74 4.80 ± 0.66 0.020
Calcium, mg/dL 9.89 ± 0.86 9.78 ± 0.73 0.073
Phosphate, mg/dL 5.11 ± 1.21 5.20 ± 1.05 0.298
Interdialytic weight gain, % of DW 4.81 ± 1.32 4.29 ± 1.26 < 0.001
  1. Calcium was adjusted for serum albumin according to the equation: corrected Ca = measured Ca + (4.0 - serum albumin in g/dL)
  2. Cumu. mean predia. β 2 -M cumulative mean predialysis β2-microglobulin, PCR protein catabolic rate, WBC white blood cell, DW dry weight, N/A not applicable