Elastic compression stockings v no intervention or placebo stockings (control) for deep venous thrombosis at 2 years*
| Outcomes | Number of studies (number of patients) | Weighted event rates | RRR (95% CI) | NNT (CI) | |
|---|---|---|---|---|---|
| Stockings | Control | ||||
| *PTS = post-thrombotic syndrome. Other abbreviations defined in glossary; weighted event rates, RRR, NNT, and CI calculated from data in article using a fixed effects model. | |||||
| Any PTS | 3 (421) | 20% | 43% | 54% (38 to 66) | 5 (4 to 7) |
| Severe PTS | 3 (421) | 7% | 15% | 56% (20 to 75) | 13 (8 to 34) |