Study designs of evaluations included in the review
Randomised controlled trials (RCTs) were included.
Specific interventions included in the review
Self-management teaching programmes were included.
Participants included in the review
Children aged 1 to 18 years with asthma were included.
Outcomes assessed in the review
One or more of five morbidity variables: emergency visits, hospitalisation, hospital days, asthma attacks and school absenteeism.
How were decisions on the relevance of primary studies made?
The authors do not state how the papers were selected for the review, or how many of the authors performed the selection.