Frequency and severity of untreated asthma by symptom group
| Symptom group | No tested | No (%) | Basis for diagnosis of asthma | Severity of asthma | |||||||
| Spirometry and bronchodilators | Serial PEF | Corticosteroid trial | Intermittent | Mild persistent | Moderate persistent | Severe persistent | |||||
| Previous doctor diagnosed asthma | 34 | 7 (21) | 1 | 6 | 0 | 0 | 2 | 4 | 1 | ||
| Symptom group 1 | 154 | 20 (13) | 9 | 14 | 0 | 0 | 3 | 4 | 13 | ||
| Symptom group 2 | 15 | 3 (20) | 2 | 1 | 0 | 0 | 1 | 1 | 1 | ||
| Symptom group 3 | 19 | 0 (0) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
| Symptom group 4 | 9 | 1 (11) | 1 | 0 | 0 | 0 | 0 | 1 | 0 | ||
| Symptom group 5 | 49 | 7 (14) | 6 | 3 | 0 | 0 | 0 | 4 | 3 | ||
| Total | 280 | 38 (14) | 19 | 24 | 0 | 0 | 6 | 14 | 18 | ||