Warschburger 2003.

Methods	STUDY DESIGN: Parallel group design LOCATION, NUMBER OF CENTRES: Germany; 4 inpatient rehabilitation units DURATION OF STUDY: 24 weeks No blinding of outcome assessors
Participants	N SCREENED: 242 N RANDOMISED: 185 (treatment: 85; control: 100) N COMPLETED: 140 M = 128 F = 57 MEAN AGE: 4.4 BASELINE DETAILS: Age, gender, functional severity, asthma severity, duration of symptoms, care giver demographics INCLUSION CRITERIA: Parents with at least 1 child under the age of 8 and diagnosed with asthma. For inclusion in the study, the care givers had to: (1) have asthma management responsibilities for their child, and (2) have not previously participated in a formal asthma health education
Interventions	EXPERIMENTAL GROUP: The intensified BASE‐program (''Bremer asthma training for parents'') comprises 6 sessions of 90 minutes, including training in perception of early warning signs; trigger identification; medication delivery; and non‐pharmacological techniques for handling asthma symptoms, as well as management of stress Setting: Hospital CONTROL GROUP: Information‐centered standard programme= 2 x 90‐minute sessions of educational material. The main focus lies in improving the asthma‐specific knowledge of the parents. Teaching methods through modelling & persuasive communication. TREATMENT PERIOD: 3 to 4 weeks FOLLOW‐UP PERIOD: 24 weeks
Outcomes	Parental knowledge; parental QOL; functional severity of the children
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Adequate sequence generation?	High risk	Participants allocated on basis of arrival date
Allocation concealment?	High risk	Open list
Incomplete outcome data addressed? All outcomes	High risk	Available case