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. 2013 Jun 4;2013(6):CD004878. doi: 10.1002/14651858.CD004878.pub4

Summary of findings 2. Glucocorticoid and epinephrine versus placebo: summary of findings.

Glucocorticoid and epinephrine versus placebo for acute viral bronchiolitis in infants and young children
Patient or population: infants and young children with acute viral bronchiolitis
 Settings: outpatients
 Intervention: glucocorticoid and epinephrine versus placebo
Outcomes Illustrative comparative risks* (95% CI) Steroid versus placebo No of participants
 (studies) Quality of the evidence
 (GRADE) Comments
Assumed risk1 Corresponding risk
Placebo Steroid
Admissions (outpatients)
Follow‐up: day 1
179 per 1000 115 per 1000 
 (72 to 186) RR 0.65 
 (0.4 to 1.05) 400
 (1) Low NNT: not calculated for non‐significant findings
Admissions (outpatients)
Follow‐up: day 7
264 per 1000 169 per 1000 
 (116 to 251) RR 0.65
(0.44 to 0.95)
400
 (1) Low NNT: 11 (95% CI 7 to 76) (based on unadjusted analysis results)
*The basis for the assumed risk (for example, the median control group risk across studies) is provided in footnotes. The corresponding risk (and its 95% CI) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI)
 CI: confidence interval
 NNT: number needed to treat
 RR: risk ratio
GRADE Working Group grades of evidence
 High quality: Further research is very unlikely to change our confidence in the estimate of effect.
 Moderate quality: Further research is likely to have an important impact on our confidence in the estimate of effect and may change the estimate.
 Low quality: Further research is very likely to have an important impact on our confidence in the estimate of effect and is likely to change the estimate.
 Very low quality: We are very uncertain about the estimate.

1Assumed risk for admissions was based on the control group risk in the single study included (Plint 2009).