Brown 2006.

Methods	STUDY DESIGN: Parallel group LOCATION, NUMBER OF CENTRES: USA, 1 centre DURATION OF STUDY: 6 months No blinding of outcome assessor
Participants	N SCREENED: 771 N RANDOMISED: 129 M = Not reported F = Not reported BASELINE DETAILS: Primary care physician: 87%; Asthma action plan: 23%; Spacer: 57%; ICS: 78%; PEF meter: 44%; 37% were African American, 56% had moderate‐to‐severe persistent asthma, 78% on ICS at baseline INCLUSION CRITERIA: Children or adults; asthma exacerbation presenting on ED visit, have had asthma symptoms in the prior 2 weeks, or a previous hospitalisation or ED visit in the past year EXCLUSION CRITERIA: Not described
Interventions	EDUCATION GROUP: Conducted by trained asthma educators and included a facilitated office visit with patient and primary care provider within 2 to 4 weeks of enrolment, a home‐visit 2 to 4 weeks thereafter Setting: Home CONTROL GROUP: Usual care, including instructions in inhaler device technique, written discharge instructions and planned follow up TREATMENT PERIOD: 2 visits up to 8 weeks post‐enrolment FOLLOW‐UP PERIOD: 6 months
Outcomes	Urgent asthma visit; treatment compliance; withdrawals
Notes	39% in intervention group did not comply with any aspect of planned educational programme
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation?	Low risk	Computer‐generated random number sequences
Allocation concealment?	Low risk	Sealed envelopes
Incomplete outcome data addressed? All outcomes	Unclear risk	Described as intention‐to‐treat; no explicit description of how this population was composed