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. 2008 Oct 8;2008(4):CD002173. doi: 10.1002/14651858.CD002173.pub2

Bertelsen 1986.

Methods DESIGN Parallel‐group 
 METHODOLOGICAL QUALITY Chalmers score 31/95; Jadad score 3 
 WITHDRAWALS/ DROPOUTS 5
Participants SETTING Hospital outpatients? 
 AGE 1 to 4 years 
 INCLUSION CRITERIA Recurrent wheezy bronchitis demanding treatment at least once a month during preceding winter or later 
 N = 59
Interventions 4 to 8 weeks baseline 
 10 weeks treatment 
 3 dd 20 mg 
 Nebulised
Outcomes Day wheezing 
 Day cough 
 Sleep disturbance 
 Bronchodilator use 
 Hospital admissions
Notes  
Risk of bias
Bias Authors' judgement Support for judgement
Adequate sequence generation? Unclear risk Not mentioned
Allocation concealment? Unclear risk Not mentioned
Blinding? 
 All outcomes Low risk Quote: 'double‐blind'
Incomplete outcome data addressed? 
 All outcomes Low risk 10 weeks: 5/59 missing, reasons provided, well balanced across groups
Free of selective reporting? Unclear risk Protocol not available
Free of other bias? Unclear risk Unclear