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Table 3 Univariate and multivariate logistic regression analyses for prognosis

From: Association between serum calcium levels and prognosis, hematoma volume, and onset of cerebral hemorrhage in patients undergoing hemodialysis

  Univariate Model 1 Model 2
OR 95% CI P value OR 95% CI P value OR 95% CI P value
Age per year 1.00 0.96–1.04 0.9 1.00 0.96–1.05 0.9    
Male vs. female 0.76 0.31–1.84 0.5 0.88 0.34–2.32 0.8    
Dialysis vintage 1.00 0.95–1.07 0.8       
History of diabetes 1.33 0.56–3.14 0.5       
Ischemic heart disease 5.33 1.75–16.2 0.002       
Heart valve repair or replacement 12.0 1.34–108 0.03     32.4 2.61–403 0.007
Antiplatelet use 3.26 1.34–7.93 0.008     4.30 1.52–12.2 0.006
Warfarin use 4.13 1.23–13.9 0.02       
sBP pre-HD proximate the onset per 10 mmHg 1.04 0.92–1.18 0.5       
Corrected serum calcium per mg/dL 2.38 1.39–4.09 < 0.001 2.37 1.42–4.23 < 0.001 2.91 1.58–5.35 < 0.001
Phosphate per mg/dL 1.21 0.93–1.58 0.2       
iPTH per 10 pg/mL 1.01 0.97–1.05 0.7       
Serum albumin per g/dL 0.46 0.20–1.05 0.06       
  1. CI confidential interval, OR odds ratio
  2. Model 1: including age, sex, and corrected serum calcium
  3. Model 2: including repair and/or replacement, antiplatelet use, and corrected serum calcium. Valve repair and/or replacement and antiplatelet use were selected by the stepwise method (mixed method)