Table 1

Criteria for determining daily asthma score.

Asthma score	Scoring criteria
Score 0: stable asthma		EITHER:
		Morning PEFR greater than 90% of run in best value AND number of puffs of supplementary bronchodilator less than 7 per 24 h
		OR:
		Morning PEFR 76–90% of run in best value BUT WITHOUT deterioration in any of the symptom scores as listed below
Score 1: mildly unstable		EITHER:
		Two or more of the following:
		1. Morning PEFR 76–90% of run in best value
		2. Supplementary bronchodilator use: 7 or more puffs per 24 h greater than rounded mean^1-150 during run in
		3. Deterioration in symptom score of 1 point or more compared to rounded mean^1-150 for run in for:
		- Daytime or night-time chest tightness/wheeze/dyspnoea OR
		- Daytime or night-time cough OR
		- Sputum production OR
		- Exercise/activity OR
		4. Appearance/deterioration in nocturnal wakening
		OR:
		Morning PEFR 61–75% of run in best value BUT WITHOUT deterioration in any symptom scores as listed above
Score 2: minor deterioration		EITHER:
		Morning PEFR 61–75% of run in best value AND two or more of the criteria listed for asthma score 1
		OR:
		Morning PEFR 40–60% of run in best value BUT WITHOUT deterioration in any symptom scores listed for asthma score 1
Score 3: major deterioration	Morning PEFR 40–60% of run in best value AND two or more of the criteria listed for asthma score 1
Score 4: major exacerbation/medical emergency		EITHER:
		Morning PEFR less than 40% of run in best value irrespective of symptoms
		OR:
		Attendance at general practitioner or hospital emergency department because of severe asthma

↵1-150 Mean symptom score for last 14 days of run in period, rounded to nearest whole number.