Table 3.

Prognostic value of time independent assessment of repeated perioperative NT-proBNP on prolonged ICU stay

Variables	Estimate	SE	ORa	95% CI	p
Method Parallel cross-sectional logistic regression models
Before surgery	0.17	0.094	1.19	0.99 to 1.43	0.070
1h after surgery	0.083	0.10	1.09	0.89 to 1.34	0.42
12h after surgery	0.086	0.18	1.09	0.77 to 1.57	0.64
36h after surgery	0.24	0.17	1.27	0.91 to 1.81	0.16

SE standard error, OR odds ratio, CI confidence interval. ^a-Models adjusted for age, gender, weight, cardiopulmonary bypass time, aorta cross clamp time, and RACHS-1 score