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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