| Exposure | Age, yr | Prevalence (95% CI) |
|---|---|---|
| Oral contraceptives: ever use | 35-44 | 92.3 (91.7-93.0) |
| 45-54 | 91.1 (90.4-91.8) | |
| 55-64 | 85.5 (84.5-86.6) | |
| ≥ 65 | 67.6 (65.3-69.9) | |
| Hormone therapy: ever use | 35-44 | 4.4 (3.9-4.9) |
| 45-54 | 25.2 (24.2-26.3) | |
| 55-64 | 60.3 (58.9-61.7) | |
| ≥ 65 | 60.5 (58.1-62.9) | |
| Hormone therapy: current use | 35-44 | 2.8 (2.4-3.3) |
| 45-54 | 15.5 (14.7-16.4) | |
| 55-64 | 27.2 (25.9-28.5) | |
| ≥ 65 | 19.6 (17.6-21.5) |
Note: CI = confidence interval.