|Outcome at 1 year||Comparisons||Event rates||RRR (95% CI)||NNT (CI)|
|*Abbreviations defined in glossary; RRR, NNT, and CI calculated from Cox proportional hazard ratios in article.|
|⩾1 severe asthma exacerbation||BUDFORM for all v BUDFORM plus SABA||16% v 27%||41% (30 to 52)||10 (8 to 13)|
|BUDFORM for all v BUD plus SABA||16% v 28%||43% (31 to 53)||9 (7 to 12)|
Maintenance and symptom relief with budesonide plus formoterol reduced severe asthma exacerbations
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