Odds ratio for variables associated with repeat (⩾2) emergency department visits
| Baseline variables | OR5-150 | 95% CI | p value |
| Clinical asthma status | |||
| Moderate asthma severity | 0.3 | 0.1 to 0.6 | 0.001 |
| Severe asthma | 1.0 | — | — |
| No hospital admission in past year | 1.0 | — | — |
| Admission in past year | 2.9 | 1.1 to 7.8 | 0.03 |
| Taking oral corticosteroids regularly | 12.1 | 3.7 to 34.1 | <0.0001 |
| Not taking oral corticosteroids regularly | 1.0 | — | — |
| Taking “other” asthma medication | 5.5 | 2.3 to 13.7 | 0.0001 |
| Not taking “other” asthma medication | 1.0 | — | — |
| Self-rating of asthma over past 3 months | |||
| Severe | 7.3 | 1.3 to 41.6 | 0.001 |
| Moderate | 3.7 | 0.7 to 19.2 | |
| Mild/no problem | 1.0 | ||
| Feels asthma generally getting worse | 2.8 | 1.5 to 5.1 | 0.0008 |
| Feels asthma generally getting better/staying same | 1.0 | 1.0 | |
| Processes of care | |||
| GP visits for asthma past 12 months 0–3 | 0.2 | 0.1 to 0.6 | 0.002 |
| GP visits for asthma past 12 months 4–6 | 0.4 | 0.1 to 1.1 | |
| GP visits for asthma past 12 months >6 | 1.0 | ||
| No written asthma action plan | 3.1 | 1.5 to 7.1 | 0.0039 |
| Has written asthma action plan | 1.0 | 1.0 | |
| Patient characteristics and attitudes | |||
| Less dislikes of asthma medication | 0.7 | 0.6 to 0.9 | 0.0034 |
| Less use of avoidance coping | 0.6 | 0.4 to 0.8 | 0.001 |
| More use of active coping | 0.7 | 0.5 to 1.0 | 0.05 |
| Less perceived social support | 1.6 | 1.2 to 2.3 | 0.001 |
| Cost concerns delay seeking care for asthma | 3.7 | 1.3 to 10.5 | 0.01 |
↵5-150 Odds ratios were adjusted for age, sex, education, household income and employment status.