Table 1 Patient characteristics
From: Impact of recent guideline changes on aspirin prescribing after knee arthroplasty
Variable | Pre-period | Post-period | p value |
|---|---|---|---|
Male gender n (%) | 55 (36.4) | 67 (37.6) | NS |
Age, years (standard deviation) | 67.02 (10.73) | 67.30 (10.42) | NS |
BMI categories kg/m2 | Â | Â | NS |
 Underweight <18.5 n (%) | 0 (0) | 1 (0.56) | |
 Normal weight 18.5–24.9 n (%) | 12 (8.11) | 13 (7.30) | |
 Overweight 25–29.9 n (%) | 36 (24.32) | 54 (30.34) | |
 Obese >30 n (%) | 100 (67.57) | 110 (61.80) | |
Significant comorbidities | Â | Â | NS |
 None n (%) | 141 (94.63) | 166 (93.26) | |
 End-stage renal disease n (%) | 2 (1.34) | 0 (0) | |
 Coronary stents n (%) | 5 (3.36) | 12 (6.74) | |
 Cardiac valve replacement (%) | 1 (0.67) | 0 (0) | |
Current smoker n (%) | 22 (14.97) | 27 (15.17) | NS |
Malignancy history n (%) | 21 (14.19) | 25 (14.04) | NS |
Estrogen therapy n (%) | 1 (0.67) | 2 (1.12) | NS |
History of deep vein thrombosis n (%) | 3 (2.01) | 5 (2.81) | NS |
Surgery in previous 3Â months n (%) | 2 (1.34) | 1 (0.56) | NS |
Bilateral TKA n (%) | 5 (3.29) | 2 (1.13) | NS |