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Table 1 Baseline characteristics (N = 400)

From: Low serum albumin as a risk factor for infection-related in-hospital death among hemodialysis patients hospitalized on suspicion of infectious disease: a Japanese multicenter retrospective cohort study

  Alb < 2.5 n = 48 2.5 ≤ Alb < 3.5 n = 200 3.5 ≤ Alb n = 152 Total n = 400 P value
Albumin (g/dL) 2.2 (2.0, 2.4) 3.1 (2.9, 3.3) 3.8 (3.6, 4.0) 3.3 (2.9, 3.7) < 0.01*
Age (years) 72 (66, 80) 75 (69, 81) 71 (62, 79) 74 (66, 81) < 0.01*
Sex (male) 25 (52.1) 125 (62.5) 110 (72.4) 260 (65.0) 0.021*
Dialysis vintage (month) 54 (25, 130) 63 (24, 119) 62 (24, 108) 62 (24, 116) 0.924
BMI (kg/m2) 19.7 (17.2, 21.6) 19.5 (17.5, 22.0) 21.5 (19.0, 23.7) 20.1 (17.9, 22.8) < 0.01*
Diabetes mellitus 19 (40.4) 84 (42.0) 74 (48.7) 177 (44.4) 0.387
Malignancy 7 (14.6) 27 (13.5) 16 (10.5) 50 (12.5) 0.633
Artificial devices 10 (20.8) 77 (38.5) 36 (23.7) 123 (30.8) < 0.01*
Creatinine (mg/dL) 4.8 (4.0, 6.9) 6.2 (4.5, 8.3) 7.3 (5.4, 9.8) 6.4 (4.6, 8.6) < 0.01*
Potassium (mEq/L) 3.8 (3.4, 4.4) 4.3 (3.7, 4.8) 4.3 (4.1, 5.2) 4.3 (3.8, 4.8) < 0.01*
CRP (mg/dL) 10.1 (4.5, 21.5) 7.7 (3.4, 14.4) 4.0 (0.7, 9.7) 6.6 (1.9, 12.9) < 0.01*
Hemoglobin (g/dL) 9.7 (8.4, 11.5) 10.6 (9.5, 11.5) 11.3 (10.2, 12.4) 10.7 (9.5, 11.9) < 0.01*
  1. BMI body mass index; CRP C-reactive protein
  2. Continuous data are medians (IQR). Categorical data are n values (%)
  3. Differences among groups were evaluated by a chi-square test for categorical variables and a Kruskall-Wallis test for continuous variables
  4. *P < 0.05