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Table 1 Multivariate logistic regression analyses for predictors of acute kidney injury

From: Authors’ response to letter “Prediction of acute kidney injury in intensive care unit patients”

Variables Multivariate model 1 Multivariate model 2
OR (95% CI) P Value OR (95% CI) P value
Age (per 10 years increment) 1.18 (1.00–1.39) 0.05 1.21 (1.03–1.42) 0.02
IABP before admission 2.33 (1.32–4.10) 0.003 2.46 (1.42–4.27) 0.001
NT-proBNP (per 10-fold increment) 1.67 (1.22–2.29) 0.001   
Tertile of NT-proBNP (pg/mL)
 First (< 425)    1.0  
 Second (425–2730)    2.10 (1.27–3.47) 0.004
 Third (> 2730)    2.16 (1.20–3.88) 0.01
Urinary L-FABP (per 10-fold increment) 2.69 (2.06–3.50) < 0.001   
Tertile of Urinary L-FABP (ng/mL)
 First (< 3.3)    1.0  
 Second (3.3–11.5)    1.50 (0.92–2.44) 0.10
 Third (> 11.5)    3.72 (2.34–5.93) < 0.001
SOFA score (per 1 point increment) 1.12 (1.04–1.21) 0.004   
Tertile of SOFA score (point)
 First (< 2)    1.0  
 Second (2–3)    1.17 (0.73–1.87) 0.51
 Third (> 3)    2.04 (1.28–3.24) 0.003
  1. Multivariate model adjusted for all baseline variables with P < 0.05 by univariate analysis. NT-proBNP, L-FABP, and the SOFA score were assessed as either continuous variables (model 1) or variables categorized into tertiles (model 2)
  2. CI confidence interval, IABP intraaortic balloon pump, L-FABP liver-type fatty acid-binding protein, NT-proBNP N-terminal pro-B-type natriuretic peptide, OR odds ratio, SOFA Sequential Organ Failure Assessment