Rhesus, bovine, and human rotavirus vaccines v placebo in children at ⩽4 years*

OutcomesNumber of RCTs (n)ComparisonsWeighted event ratesRRR (95% CI)NNT (CI)
*RCTs  =  randomised controlled trials. Abbreviations defined in glossary; RRR, RRI, NNT, NNH, CI, and weighted event rates calculated from data in article using a random effects model.
Rotavirus diarrhoea20 (13 305)Rhesus v placebo11% v 19%41% (30 to 50)13 (12 to 17)
17 (5283)Bovine v placebo11% v 18%41% (24 to 55)15 (10 to 25)
3 (2482)Human v placebo3% v 12%58% (15 to 79)12 (6 to ∞)
All cause diarrhoea11 (7706)Rhesus v placebo54% v 63%14% (8 to 20)12 (9 to 20)
11 (3309)Bovine v placebo28% v 37%27% (11 to 40)10 (6 to 25)
1 (281)Human v placebo19% v 21%9% (−44 to 43)Not significant
All cause mortality4 (6029)Rhesus v placebo0.16% v 0.18%28% (−212 to 84)Not significant
RRI (CI) NNH (CI)
Fever32 (13 718)Rhesus v placebo35% v 23%100% (51 to 164)9 (7 to 15)