Prehospital aspirin use is associated with improved clinical outcomes in pulmonary embolism: A retrospective case-control study

Table 3 Clinical outcomes associated with prehospital aspirin use, n (%)

Outcome	Aspirin (n = 90)	No aspirin (n = 233)	P value	OR (95%CI)
RV strain on CT	20 (22.2)	81 (34.8)	0.029	0.54 (0.31-0.94)
RV strain on echocardiogram	12 (13.3)	36 (18.9)	0.246	0.66 (0.32-1.34)
ICU admission	15 (16.7)	67 (28.8)	0.025	0.50 (0.27-0.92)
Pressor requirement	2 (2.2)	23 (9.9)	0.021	0.21 (0.04-0.90)
In-hospital mortality	3 (3.3)	27 (11.6)	0.022	0.260 (0.080-0.889)
EKOS therapy	3 (3.3)	26 (11.2)	0.047	0.28 (0.08-0.93)
Mechanical ventilation	6 (6.7)	11 (4.7)	0.483	1.44 (0.52-4.02)
Cardiac arrest	6 (6.7)	14 (6.0)	0.826	1.12 (0.42-3.00)

ICU: Intensive care unit; RV: Right ventricle; CT: Computed tomography; EKOS: Ekosonic endovascular system; CI: Confidence interval; OR: Odds ratio.