Comparison 2.
Local or regional anaesthesia for the prevention of persistent postoperative pain (classical analysis)
| Outcome or subgroup title | No. of studies |
No. of participants |
Statistical method | Effect size |
|---|---|---|---|---|
| 1 PPP after thoracotomy | 6 | Odds Ratio (M-H, Random, 95% CI) | Subtotals only | |
| 1.1 Three months follow-up | 5 | 428 | Odds Ratio (M-H, Random, 95% CI) | 0.70 [0.40, 1.20] |
| 1.2 Six months follow-up | 5 | 370 | Odds Ratio (M-H, Random, 95% CI) | 0.39 [0.24, 0.63] |
| 2 PPP after cardiac surgery | 2 | Mean Difference (IV, Random, 95% CI) | Subtotals only | |
| 2.1 Three months follow-up | 2 | 116 | Mean Difference (IV, Random, 95% CI) | −0.77 [−1.74, 0.20] |
| 3 PPP after breast cancer surgery | 19 | Odds Ratio (M-H, Random, 95% CI) | Subtotals only | |
| 3.1 Three months follow-up | 11 | 966 | Odds Ratio (M-H, Random, 95% CI) | 0.34 [0.19, 0.61] |
| 3.2 Six months follow-up | 9 | 515 | Odds Ratio (M-H, Random, 95% CI) | 0.56 [0.37, 0.84] |
| 3.3 12 months follow-up | 2 | 113 | Odds Ratio (M-H, Random, 95% CI) | 0.63 [0.04, 10.47] |
| 4 PPP after caesarean section | 4 | Odds Ratio (M-H, Random, 95% CI) | Subtotals only | |
| 4.1 Three months follow-up | 2 | 137 | Odds Ratio (M-H, Random, 95% CI) | 1.09 [0.39, 3.07] |
| 4.2 Six months follow-up | 3 | 492 | Odds Ratio (M-H, Random, 95% CI) | 0.44 [0.26, 0.74] |
| 5 PPP after amputation | 2 | Odds Ratio (M-H, Random, 95% CI) | Totals not selected | |
| 6 PPP after laparotomy | 2 | Odds Ratio (M-H, Random, 95% CI) | Totals not selected | |
| 7 PPP after hernia repair | 2 | Odds Ratio (M-H, Random, 95% CI) | Totals not selected | |
| 8 PPP after hysterectomy | 2 | 135 | Mean Difference (IV, Random, 95% CI) | 1.90 [−1.23, 5.02] |
| 8.1 Three months follow-up | 2 | 135 | Mean Difference (IV, Random, 95% CI) | 1.90 [−1.23, 5.02] |