Weighted event rates | |||||
---|---|---|---|---|---|
Follow up | Number of studies | 3 to 7 months | 2 months | RRR (95% CI) | NNT (CI) |
*Abbreviations defined in glossary; weighted event rates calculated from data in article. | |||||
†Data not reported. | |||||
6 months | 4 | † | † | 41% (24 to 54) | 4 (2 to 6) |
12 to 24 months | 5 | 48% | 68% | 27% (11 to 40) | 5 (3 to 10) |