Charlton 1994.

Methods	STUDY DESIGN: Parallel group randomised controlled trial LOCATION, NUMBER OF CENTRES: Single centre in Australia DURATION OF STUDY: 2 years Outcome assessors were blinded to treatment group allocation
Participants	SCREENED: Not reported N RANDOMISED: 91 (treatment: 48; control 43) N COMPLETED: 79 (treatment: 42; control 37) M = 52 F = 39 MEAN AGE: 6.8 BASELINE DETAILS: 55% had hospital admission, 34% ED visit, 59% GP home visit in previous 6 months INCLUSION CRITERIA: Admission for asthma or attended outpatients department for asthma at time of recruitment; hospital admission for asthma in previous 12 months EXCLUSION CRITERIA: Not stated
Interventions	EDUCATION GROUP: Nurse run asthma clinic; information; self‐monitoring of symptoms, PEF and medications; written action plan allowing self adjustment of medications based on symptoms or PEF; reminders sent for regular medical review with own GP; medication modified if necessary (on consultation with hospital doctor) Parents and children included; delivered at time of visit or admission. Initial interview lasted 45 minutes; follow‐up letters sent every 3 months for 12 months reminding patients to have asthma reviewed by their GP or nurse CONTROL GROUP: Lower intensity education consisting of self‐monitoring of symptoms, PEF and medications (different diary to intervention group). This involved an interview of about 15 minutes only. TREATMENT PERIOD: 12 months FOLLOW‐UP PERIOD: 12 months
Outcomes	Hospital admissions and home visits by GP ‐ measured for the 6 to 12 month period from beginning to end of the intervention, i.e. DURING intervention. Skills (response to an acute attack), daily PEF, day and night wheeze scores, daily puffs of bronchodilator and inhaled steroids, days of oral steroids, days lost from school, daily activity restriction score ‐ measured for 12 months from beginning to end of the intervention, i.e. DURING intervention.
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation?	Unclear risk	Information not available
Allocation concealment?	Low risk	Sealed envelope
Incomplete outcome data addressed? All outcomes	High risk	Available case