Table 2

Independent predictors of mortality or dialysis: multivariate cox regression analysis using forward stepwise selection

Univariate analysisMultivariate analysis
HR (95% CI)p ValueHR (95% CI)p Value
Pre-PCI SCr >1.5 mg/dl7.93 (5.17 to 12.15)<0.0013.82 (2.12 to 6.90)<0.001
CIN4.39 (2.88 to 6.70)<0.0012.76 (1.61 to 4.73)<0.001
Previous stroke2.51 (1.53 to 4.14)<0.0012.34 (1.20 to 4.57)0.013
BMI <24 kg/m23.54 (2.15 to 5.85)<0.0011.99 (1.08 to 3.66)0.028
LVEF <40%3.78 (2.58 to 5.55)<0.0011.89 (1.10 to 3.25)0.021
Anaemia*4.05 (2.87 to 5.70)<0.0011.85 (1.04 to 3.27)0.035
Age >75 years2.99 (2.09 to 4.26)<0.001
Female gender1.68 (1.18 to 2.38)0.004
Diabetes mellitus1.56 (1.09 to 2.23)0.016
Hypertension1.62 (1.14 to 2.29)0.008
Shock3.47 (2.44 to 4.94)<0.001
  • * Defined as haemoglobin <13 g/dl for men and <12 g/dl for women.

  • BMI, body mass index; CIN, contrast-induced nephropathy; LVEF, left ventricular ejection fraction; PCI, percutaneous coronary intervention; SCr, serum creatinine level.