Outcomes | Number of RCTs | Comparison | Standardised mean difference (95% CI) | ||
---|---|---|---|---|---|
Mean forced expiratory volume in 1 second (ml) | 3 | PFSM v RMR | 0.01 (−0.14 to 0.15)† | ||
Mean peak expiratory flow (ml) | 3 | PFSM v RMR | 0.06 (−0.09 to 0.21)† |
Weighted event rates | RRI (CI) | NNH | |||
---|---|---|---|---|---|
Hospital admission (patients) | 4 | PFSM v SSM | 4% v 3% | 17% (−56 to 212) | Not significant |
RRR | NNT | ||||
---|---|---|---|---|---|
*RCTs = randomised controlled trials. Abbreviations defined in glossary; RRI, RRR, NNH, NNT and CI calculated from data in article. | |||||
†Not statistically significant. | |||||
Emergency room visits (patients) | 5 | PFSM v SSM | 15% v 16% | 9% (−35 to 39) | Not significant |