Table 1.
Mean number of drugs (including warfarin) and potential interactions among warfarin users by age and gender.
| Age | 50-60 | 61-70 | 71-80 | 80+ | Total |
|---|---|---|---|---|---|
| N=1383 | N=2663 | N=2617 | N=512 | N=7175 | |
| All patients Number of drugs (SD) |
4.5(1.9)* | 4.9(2.0) | 4.9(2.0) | 4.7(1.9) | 4.8(1.9) |
| Number of potential interactions (SD) | 1.1(1.3)* | 1.3(1.4) | 1.3(1.4) | 1.0(1.2) | 1.2(1.4) |
| Men | 873 | 1457 | 1090 | 169 | 3589 |
| Number of drugs (SD) | 4.5(1.9) | 4.8(2.1) | 4.7(1.9) | 4.6(1.9) | 4.7(2.0) |
| Number of potential interactions (SD) | 1.2(1.3) | 1.2(1.4) | 1.1(1.4) | 1.0(1.2) | 1.2(1.4) |
| Women | 510 | 1206 | 1527 | 343 | 3586 |
| Number of drugs (SD) | 4.5(2.0) | 5.0(2.0) | 5.0(2.0) | 4.7(1.9) | 4.9(2.0) |
| Number of potential interactions (SD) | 1.1(1.3) | 1.4(1.4) | 1.3(1.5) | 1.1(1.2) | 1.3(1.4) |
| *p<0.05 as compared with other age groups (Tukey test) | |||||