Table 1.
Patients on warfarin treatment in a registered population of 75146. Age and gender distribution and prevalence, presented as number of patients, percentage of patients, percentage of women and 95% confidence intervals (CI).
| Age and gender group (years and gender) | Number of patients | Percentages of patients (%) (n = 507) | Prevalence (%) | Percentage of women (%) (CI) |
| 0–44 | 17 | 3.4 | 0.04 | 35 (10; 61) |
| 45–64 | 99 | 19.5 | 0.53 | 26 (17; 35)1 |
| 65–74 | 143 | 28.2 | 2.80 | 44 (36; 52) |
| 75–84 | 203 | 40.0 | 4.54 | 49 (42; 56) |
| 85+ | 45 | 8.9 | 2.62 | 67 (52; 81)2 |
| All ages | 507 | 100.0 | 0.67 | 44 (40; 49)3 |
| Men | 282 | 55.6 | 0.78 | |
| Women | 225 | 44.4 | 0.58 |
1 significantly more men (p < 0.01);2 significantly more women (p < 0.01);3 significantly more men (p = 0.01)