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. Author manuscript; available in PMC: 2014 Apr 29.
Published in final edited form as: Cochrane Database Syst Rev. 2012 Oct 17;10:CD007105. doi: 10.1002/14651858.CD007105.pub2

Comparison 1.

Local anaesthetics and regional anaesthesia for persistent pain after surgery (pooled)

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Dichotomous pain outcomes at six months 5 Odds Ratio (IV, Random, 95% CI) Subtotals only
    1.1 Thoracotomy (epidural analgesia)) 3 250 Odds Ratio (IV, Random, 95% CI) 0.34 [0.19, 0.60]
    1.2 Breast cancer surgery (paravertebral block) 2 89 Odds Ratio (IV, Random, 95% CI) 0.37 [0.14, 0.94]
2 Dichotomous pain outcomes at twelve months 3 Odds Ratio (IV, Random, 95% CI) Totals not selected
    2.1 Thoracotomy (epidural analgesia) 1 Odds Ratio (IV, Random, 95% CI) 0.0 [0.0, 0.0]
    2.2 Breast cancer surgery (paravertebral block) 2 Odds Ratio (IV, Random, 95% CI) 0.0 [0.0, 0.0]