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Table 2 Primary analysis of the hazard ratio of renal replacement therapy associated with inhaled nitric oxide (iNO)

From: Inhaled nitric oxide and the risk of renal dysfunction in patients with acute respiratory distress syndrome: a propensity-matched cohort study

Model Events/person days, number Hazard ratio (95% CI) P value
iNO Control
Crude hazard ratio 79/2175 69/5417 2.23 (1.61 to 3.09) <0.001
Multiple regression Cox modela 79/2175 69/5417 2.17 (1.48 to 3.20) <0.001
Cause-specific Cox model, propensity-matched cohort 52/1600 36/2370 1.76 (1.19 to 2.60) 0.005
Fine-Gray competing-risks regression, propensity-matched cohort 52/1600 36/2370 1.59 (1.08 to 2.34) 0.02
  1. aAdjusted for all variables used in the logistic regression model for the propensity score