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Table 2 Odds ratio and 95% confidence interval for post-dialysis fatigue by the corrected serum calcium levels

From: Association between corrected serum calcium levels after dialysis and post-dialysis fatigue risk: a hospital-based case–control study

Variables

Fatigue (N = 340)

Non-fatigue (N = 270)

Model1a OR (95% CI)

Model2b OR (95% CI)

Model3c OR (95% CI)

Total calcium, mmol/l

 T1 (< 2.33)

76

89

1.00 (ref)

1.00 (ref)

1.00 (ref)

 T2 (2.33–2.46)

134

90

1.74 (1.16–2.62)

1.66 (1.10–2.52)

1.55 (1.00–2.42)

 T3 (> 2.46)

130

91

1.67 (1.12–2.52)

1.70 (1.12–2.59)

1.61 (1.01–2.58)

 P trend

  

0.021

0.019

0.061

  1. CI, confidence interval; OR, odds ratio; T, tertiles; ref, reference
  2. aModel 1: Crude model
  3. bModel 2: Adjusted for age, gender and dialysis age
  4. cModel 3: Adjusted for age, gender, dialysis age, body mass index, residual kidney function, hemoglobin, albumin, urea nitrogen, single-pool Kt/Vurea, C-reactive protein, phosphorus, hypertension, diabetes and daily exercise time