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

Table 1 Baseline characteristics of the study population stratified by prehospital aspirin use, n (%)

Variable	Aspirin (n = 90)	No aspirin (n = 233)	P value
Age (year), mean ± SD	74.2 ± 14.3	66.9 ± 16.7	< 0.001
Male sex	49 (54.4)	113 (48.5)	0.338
BMI (kg/m²), mean ± SD	29.7 ± 7.4	29.7 ± 7.2	0.986
Hypertension	58 (64.4)	125 (53.6)	0.079
Coronary artery disease	44 (48.9)	21 (9.0)	< 0.001
Chronic kidney disease	15 (16.7)	23 (9.9)	0.089
Active malignancy	18 (20.0)	59 (25.3)	0.314
Smoking history	47 (52.2)	109 (46.8)	0.380
Heart rate on admission (bpm)	89.0 ± 19.3	94.6 ± 21.4	0.032

BMI: Body mass index.