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. 2002 Jan 21;2002(1):CD003530. doi: 10.1002/14651858.CD003530

Greefhorst 1992.

Methods Setting: muticentre study, The Netherlands, primary care or hospital outpatient setting unclear 
 Length of intervention period: 6 weeks
 Randomisation: yes, method not stated
 Allocation concealment: unclear
 Design: crossover, no washout
 Masking: none
 Excluded: not stated
 Withdrawals: not stated
 Baseline characteristics: no demographic data presented
 Jadad score: 1
Participants 145 adults
 Inclusion criteria:
 Adult asthmatic patients already treated with inhaled corticosteroids
 No further details
 Exclusion criteria:
 No details
Interventions BDP: 200 mcg 2xdaily (400 mcg/d) via Rotahaler DPI
BUD: 200 mcg 2xdaily (400 mcg/d) via Turbuhaler DPI
Outcomes Morning PEFR
 Evening PEFR
 Asthma symptom score
 Rescue beta2 agonist use
Notes Study in abstract form only.
 No reply from author to clarify details of randomisation method used, further inclusion/exclusion criteria, patient withdrawals or data for outcomes.
 Not stated if carryover effects were tested for.
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) Unclear risk B ‐ Unclear