Table 1. Baseline characteristics of the study population by sex and aspirin usea.
|
Women
|
Men
|
|||
|---|---|---|---|---|
| Characteristic | No aspirin use | Aspirin use | No aspirin use | Aspirin use |
| Participants (n) | 15 721 | 16 355 | 26 394 | 15 780 |
| Age, mean (years) | 61.2 | 61.6 | 59.5 | 60.8 |
| Postsecondary education (%) | 18.0 | 21.1 | 16.4 | 17.5 |
| Family history of colorectal cancer (%) | 7.3 | 8.2 | 6.8 | 7.3 |
| Body mass index, mean (kg/m2) | 25.0 | 25.1 | 25.7 | 26.0 |
| Leisure-time physical activity (h/week) | 2.4 | 2.3 | 2.6 | 2.5 |
| History of diabetes (%) | 3.5 | 3.7 | 5.8 | 6.5 |
| Current smoker (%) | 23.3 | 23.6 | 24.5 | 29.5 |
a
All values (except age) are standardised to the age distribution of the study population at baseline.