. Author manuscript; available in PMC: 2022 Oct 3.

Published in final edited form as: Panam J Trauma Crit Care Emerg Surg. 2016 Jan 4;5(1):43–51. doi: 10.5005/jp-journals-10030-1142

Table 2:

Predictors associated with a positive SPW in hemodynamic stable patients with penetrating injuries to the precordial region who underwent a SPW

	Unadjusted analysis^a		Adjusted analysis^b

	OR (95% CI)	p-value	OR (95% CI)	p-value
Stab/knife mechanism	2.48 (1.17–5.25)	0.017	—	0.325
Single injuries	14.61 (1.9–110.0)	0.009	12.99 (1.6–102.7)	0.015
Systolic BP	0.98 (0.96–0.99)	0.005	0.98 (0.97–1.00)	0.087
Stable PI	0.31 (0.14–0.65)	0.002	—	0.642
Pericardial tamponade	8.52 (3.92–18.4)	<0.001	6.37 (2.78–14.6)	<0.001

SPW: Subxiphoid pericardial window; BP: blood pressure; PI: physiological index; OR: odds ratio; CI: confidence interval

Simple logistic regression.

Stepwise multivariable logistic regression model with backwards elimination, controlled for mechanism, number of injuries, systolic BP, PI, and pericardiac tamponade. Variables with p-value < 0.1 were retained in the model.

Ellipses indicate not applicable