Table 3. Association of aspirin use with primary outcomes using logistic regression analysis.

Outcomes	Model 1			Model 2			Model 3
	OR (95% CI)	P value		OR (95% CI)	P value		OR (95% CI)	P value
In-hospital death
Aspirin use	0.500 (0.403, 0.620)	<0.001		0.605 (0.493, 0.742)	<0.001		0.574 (0.456, 0.721)	<0.001
28-day mortality
Aspirin use	0.470 (0.386, 0.573)	<0.001		0.563 (0.467, 0.677)	<0.001		0.539 (0.437, 0.665)	<0.001

Model 1: age, gender, renal disease, coronary artery disease, diabetes, and hypertension were adjusted; model 2: heart rate, DBP, SBP, SpO₂, glucose, hematocrit, Pt, mechanical ventilation use, and CRRT were adjusted; model 3, all covariates adjusted including age, gender, heart rate, DBP, SpO₂, glucose, hematocrit, Pt, renal disease, coronary artery disease, diabetes, hypertension, mechanical ventilation use, and CRRT. OR, odds ratio; CI, confidence interval; DBP, diastolic blood pressure; SBP, systolic blood pressure; SpO₂, oxygen saturation; CRRT, continuous renal replacement therapy; Pt, prothrombin time.