Pentoxifylline v placebo, 4 layer v 1 layer bandages, and hydrocolloid v knitted viscose dressings for venous leg ulcers at 24 weeks*
| Comparison | Time to healing (d) | HR (95% CI)† | Proportion healed | RBI (CI) | NNT (CI) |
|---|---|---|---|---|---|
| *Abbreviations defined in glossary; RBI, RBR, NNT, NNH, and CI calculated from data in article. | |||||
| †HR = hazard ratio for healing, adjusted for the other interventions, centre, simple or non-simple ulceration, area and duration of current ulcer, and years since first ulcer. | |||||
| ‡Corrected HR provided by author. | |||||
| Pentoxifylline v placebo | 98 v 118 | 1.4 (1.01 to 2.0) | 62% v 53% | 16% (−6 to 45) | Not significant |
| 4 layer v 1 layer bandages | 78 v 168 | 2.0 (1.4 to 2.9) | 67% v 49% | 35% (9 to 69) | 6 (4 to 20) |
| RBR (CI) | NNH | ||||
| Hydrocolloid v knitted viscose dressings | 99 v 127 | 1.1 (0.7 to 1.5)‡ | 57% v 58% | 3% (−20 to 22) | Not significant |