Summary of findings 1. Absorbable tacks compared to nonabsorbable tacks in primary ventral or incisional hernia repair.
| Absorbable tacks compared to nonabsorbable tacks in incisional hernia repair | ||||||
| Patient or population: People needing incisional hernia repair Setting: Hospital Intervention: Absorbable tacks Comparison: Nonabsorbable tacks | ||||||
| Outcomes | Illustrative comparative risks* (95% CI) | Relative effect (95% CI) | No of Participants (studies) | Quality of the evidence (GRADE) | Comments | |
| Assumed risk | Corresponding risk | |||||
| Risk with nonabsorbable tacks | Risk with absorbable tacks | |||||
| Recurrence (1 year to 31 (median) months) | 80 per 1000 | 21 fewer per 1000 (66 fewer to 178 more) |
RR 0.74 (0.17 to 3.22) |
101 (2 RCT) | ⊕⊝⊝⊝a VERY LOW | ‐ |
| Early postoperative pain (VAS 0 ‐ 10, 1 day) | The mean pain was 3 | MD 0 (0.58 lower to 0.58 higher) | ‐ | 51 (1 RCT) | ⊕⊝⊝⊝a VERY LOW | ‐ |
| Early postoperative pain (VAS 0 ‐ 100, 2 days) | The mean pain was 55.3 | MD 11.8 lower (27.71 lower to 4.11 higher) |
‐ | 50 (1 RCT) |
⊕⊕⊝⊝b LOW |
‐ |
| Early postoperative pain (VAS 0 ‐ 10, 2 weeks) | The mean pain was 1.1 | MD 0.4 (0.1 |
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aRated down by one level for risk of bias (performance bias) and by two levels for imprecision (optimal information size threshold not reached and 95% confidence intervals include appreciable benefit and appreciable harm). bRated down by two levels for imprecision (optimal information size threshold not reached and 95% confidence intervals include appreciable benefit and appreciable harm). cRated down by one level for risk of bias (performance bias) and by one level for imprecision (optimal information size threshold not reached). dRated down by two levels for imprecision (effect estimate is based on very few events).