Symptom scoring explanation as provided to study participants
| Symptom | Score | Description |
|---|---|---|
| Night wheeze | 0 | None |
| 1 | Slight—slept well but slightly wheezy | |
| 2 | Moderate—sleep disturbed by wheeze | |
| 3 | Severe—awake most of the night | |
| Night cough | 0 | None |
| 1 | Slight—slept well but cough at times | |
| 2 | Moderate—sleep disturbed by cough | |
| 3 | Severe—awake most of the night | |
| Day wheeze | 0 | None |
| 1 | Less than 3 times a day, brief and helped by inhalers | |
| 2 | More than 3 times a day, brief and helped by inhalers | |
| 3 | Persistent symptoms lasting longer than 2 hours | |
| Day cough | 0 | None |
| 1 | Less than 3 times a day, brief and helped by inhalers | |
| 2 | More than 3 times a day, brief and helped by inhalers | |
| 3 | Persistent symptoms lasting longer than 2 hours | |
| Activities | 0 | No limitation |
| 1 | Any limitation—for example, exercise induced wheeze or cough | |
| 2 | Daily routine modified—for example, missed school or exercise |