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Forest plot comparing postoperative pain after hernia repair with adhesional or self‐gripping fixation versus suture fixation. a Pain scores after 1 week, b pain scores after 1 month and c incidence of pain after 12 months. Mean differences and odds ratios are shown with 95 per cent confidence intervals. An inverse‐variance (a,b) or Mantel–Haenszel (c) random‐effects model was used for meta‐analysis. *Values are mean(s.d.)
