Prevalence of measured 4-tone and high-tone pure-tone average frequency loss in study participants and the general Canadian population,25 total and by selected characteristics
| Characteristic | Speech frequency hearing loss, % (95% CI) | High frequency hearing loss, % (95% CI) | ||
|---|---|---|---|---|
| Study participants | General Canadian population | Study participants | General Canadian population | |
| Sex | ||||
| Male | 42.2 (30.9–54.4) | 25.3 (20.9–30.4) | 56.2 (44.1–67.7) | 41.2. (36.5–46.0) |
| Female | 27.8 (15.8–44.0) | 13.1 (11.0–15.6) | 30.6 (18.0–46.9) | 29.7 (24.9–35.0) |
| Age, yr | ||||
| 20–39 | 15.6 (6.9–31.8) | 7.1 (4.2–11.7) | 21.9 (11.0–38.8) | 8.0 (5.3–11.9) |
| 40–49 | 31.8 (16.3–52.7) | 10.1 (6.6–15.2) | 50.0 (30.7–69.3) | 21.3 (14.6–31.4) |
| 50–59 | 34.6 (19.4–3.8) | 19.9 (14.1–27.3) | 57.7 (39.0–74.5) | 49.1 (39.9–58.3) |
| 60–69 | 92.8 (68.5–98.7) | 38.3 (34.4–42.3) | 92.9 (68.5–98.7) | 74.1 (70.1–77.7) |
| 70–79 | 66.7 (30.0–90.3) | 65.0 (56.4–72.7) | 1.0 (61.0–100.0) | 93.8 (88.1–96.8) |
| Noise exposure | ||||
| No | 36.6 (23.6–51.9) | – | 46.3 (32.1–61.3) | – |
| Yes | 40.7 (29.1–53.4) | – | 57.6 (44.9–69.4) | – |
| Total | 39.5 (30.4–49.3)* | 19.2 (16.9–21.7) | 51.9 (42.2–61.4)* | 35.5 (33.1–37.7) |
Note: CI = confidence interval.
↵* Standardized for age and sex.