Table 1.
Patient Demographics and Responses to Survey Questions.
| ASA+ INT− | ASA+ INT+ | p | ASA− INT+ | ASA− INT− | p | |
|---|---|---|---|---|---|---|
| n | 31 | 25 | 24 | 27 | ||
| Male, n (%) | 11 (35) | 7 (28) | .55 | 8 (33) | 14 (52) | .18 |
| Age, mean ± SD | 62 ± 4.3 | 61 ± 7.2 | .51 | 58 ± 4.1 | 59 ± 6.6 | .34 |
| Diabetes, n (%) | 2 (6) | 3 (12) | .65 | 0 (0) | 1 (4) | 1.00 |
| Smoking, n (%) | 1 (3) | 1 (4) | 1.00 | 1 (4) | 1 (4) | 1.00 |
| Use aspirin regularly for the prevention of cardiovascular disease, n (%) | 29 (94) | 19 (76) | .12 | 0 (0) | 1 (4) | 1.00 |
| Used aspirin | ||||||
| In the past 24 hours, n (%) | 29 (94) | 22 (88) | .65 | 0 (0) | 0 (0) | NA |
| In the past 7 days, n (%) | 31 (100) | 25 (100) | NA | 0 (0) | 0 (0) | NA |
| Used pain medication | ||||||
| In the past 24 hours, n (%) | 1 (3) | 13 (52) | <.0001 | 9 (38) | 1 (4) | .004 |
| In the past 7 days, n (%) | 3 (10) | 22 (88) | <.0001 | 21 (88) | 1 (4) | <.0001 |
| Used cold, flu, or allergy medication | ||||||
| In the past 24 hours, n (%) | 0 (0) | 11 (44) | <.0001 | 7 (29) | 0 (0) | .003 |
| In the past 7 days, n (%) | 0 (0) | 11 (44) | <.0001 | 12 (50) | 0 (0) | <.0001 |
| Used NSAID | ||||||
| In the past 24 hours, n (%) | 0 (0) | 7 (28) | .002 | 5 (21) | 0 (0) | .018 |
| In the past 7 days, n (%) | 0 (0) | 21 (84) | <.0001 | 17 (71) | 0 (0) | <.0001 |
Abbreviations: ASA, aspirin; INT, possible interfering medication; NSAID, nonsteroidal anti-inflammatory drug; n, number; SD, standard deviation; NA, not applicable.