Annual period prevalence (% with 95% CI) of a hospital visit for asthma in relation to demographic factors, environmental exposures, and asthma symptoms by household income
| <$20 000 (n=351) | $20 000–60 000 (n=1517) | >$60 000 (n=771) | |
|---|---|---|---|
| Age (years) | |||
| 5–12 | 28.2 (20.9 to 35.5) | 22.9 (19.4 to 26.4) | 17.1 (14.0 to 20.2) |
| 13–19 | 18.5 (9.5 to 27.5) | 14.3 (10.4 to 18.2) | 14.5 (10.4 to 18.6) |
| Sex | |||
| Male | 27.9 (18.9 to 36.9) | 18.7 (15.4 to 22.0) | 16.6 (12.3 to 20.9) |
| Female | 22.7 (14.1 to 31.3) | 20.3 (16.0 to 24.6) | 15.3 (11.2 to 19.4) |
| Highest parental education | |||
| Secondary school not completed | 29.3 (20.3 to 38.3) | 22.1 (14.3 to 29.9) | 35.0 (0 to 70.3) |
| Secondary school completed | 23.5 (15.9 to 31.1) | 20.1 (17.6 to 22.6) | 18.2 (13.3 to 23.1) |
| University degree | 10.9 (0 to 25.6) | 16.5 (10.6 to 22.4) | 14.5 (11.4 to 17.6) |
| Parental marital status | |||
| Married | 24.2 (13.6 to 34.8) | 19.5 (17.0 to 22.0) | 16.5 (13.8 to 19.2) |
| Separated/divorced/widowed | 20.6 (12.0 to 29.2) | 18.1 (10.8 to 25.4) | – |
| Single (never married) | 37.1 (23.6 to 50.6) | 23.3 (10.4 to 36.2) | – |
| Cats | |||
| Yes | 20.9 (10.9 to 30.9) | 16.8 (11.9 to 21.7) | 19.6 (12.3 to 26.9) |
| No | 27.1 (20.2 to 34.0) | 20.4 (17.9 to 22.9) | 15.0 (12.5 to 17.5) |
| Dogs | |||
| Yes | 16.5 (7.7 to 25.3) | 14.9 (11.4 to 18.4) | 12.5 (8.6 to 16.4) |
| No | 27.5 (20.2 to 34.8) | 21.9 (19.0 to 24.8) | 18.1 (14.2 to 22.0) |
| Regularly exposed to second hand smoke at home | |||
| Yes | 30.9 (22.7 to 39.1) | 23.1 (19.0 to 27.2) | 21.0 (13.9 to 28.1) |
| No | 17.3 (11.2 to 23.4) | 17.1 (14.2 to 20.0) | 14.5 (11.6 to 17.4) |
| Asthma symptoms experienced continually (daily or almost daily) | |||
| Yes | 38.1 (23.0 to 53.2) | 36.3 (26.5 to 46.1) | 28.1 (16.1 to 40.1) |
| No | 24.8 (17.9 to 31.7) | 19.8 (16.9 to 22.7) | 16.5 (13.2 to 19.8) |
| Sleep disturbed due to asthma more than twice monthly | |||
| Yes | 30.5 (13.8 to 47.2) | 37.7 (29.5 to 45.9) | 23.8 (13.0 to 34.6) |
| No | 24.6 (17.7 to 31.5) | 17.8 (15.1 to 20.5) | 15.8 (12.9 to 18.7) |