P-selectin in response to arachidonic acid (AA, aspirin test) and ADP (clopidogrel test)
| All | Clopidogrel only | Aspirin +clopidogrel | P value | |
| AA MF | ||||
| Number (%) | 62 (100) | 59 (95.2) | 3 (4.8) | – |
| Mean (SD) | 590 (330) | 612 (323) | 160 (118) | 0.020 |
| Median [IQR] | 528 [317, 834] | 547 [375,851] | 103 [−] | 0.013 |
| >500 (%) | 34 (54.8) | 34 (57.6) | 0 | 0.050 |
| ADP MF | ||||
| Number (%) | 62 (100) | 59 (95.2) | 3 (4.8) | – |
| Mean (SD) | 493 (266) | 498 (269) | 392 (202) | 0.51 |
| Median [IQR] | 429 [303, 656] | 425 [307, 656] | 502 [−] | 0.54 |
| >860 (%) | 7 (11.3) | 7 (11.9) | 0 | 0.53 |
Data are number (%), median [IQR] or mean (SD); comparisons by χ2 test, Kruskal-Wallis test or one-way analysis of variance.
MF, median fluorescence.