Demographic characteristics of the sample population according to asthma diagnosis (%)
| Diagnosed asthma (n=236) | Undiagnosed asthma (n=56) | No asthma (n=2231) | |
|---|---|---|---|
| *Atopy=skin test reactions of >2 mm to rye grass, cat, house dust mite, Alternaria, feather, and cockroach allergens. | |||
| †p<0.05 for difference diagnosed v undiagnosed asthma. | |||
| Age | |||
| ⩾40 years† | 48.3 | 76.8 | 55.4 |
| <40 years† | 51.7 | 23.2 | 44.6 |
| Sex (% male) | 37.3 | 46.4 | 50.3 |
| Marital status | |||
| Married/partner | 65.7 | 67.9 | 62.2 |
| Divorced/widowed/never married | 34.3 | 32.1 | 37.8 |
| Country of birth | |||
| Australia† | 80.1 | 60.7 | 69.3 |
| Immigrant† | 19.9 | 39.3 | 30.7 |
| Income | |||
| <AUD$40000† | 51.7 | 80.4 | 48.2 |
| >AUD$40000† | 48.3 | 19.6 | 51.8 |
| Social Security pension | |||
| Yes† | 38.6 | 51.8 | 31.0 |
| Employment | |||
| Not working | 38.6 | 64.3 | 35.3 |
| Working currently | 61.4 | 35.7 | 64.7 |
| Education | |||
| High school only | 53.0 | 50.0 | 47.6 |
| Post high school | 47.0 | 50.0 | 52.4 |
| Atopy* | |||
| Yes† | 74.6 | 57.1 | 57.9 |