| Ref (type) | Population | Outcome, Interventions | Results and statistical analysis | Effect size | Favours |
| Lung function (FEV1) | |||||
|
[46]
RCT |
94 people In review [45] |
Mean improvement in FEV1
as a percentage of predicted FEV1
12 weeks
8% with salmeterol (50 micrograms twice daily) plus ipratropium (40 micrograms 4 times daily) 5% with salmeterol alone (50 micrograms twice daily) |
P <0.01 |
Effect size not calculated | salmeterol plus ipratropium |
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