Fig. 5From: Open versus endoscopic carpal tunnel release: a systematic review and meta-analysis of randomized controlled trialsComparison of the Boston Carpal Tunnel Questionnaire Symptom Severity Scale (BCTQ-S) score between patients who underwent ECTR and those who underwent OCTR. OCTR, open carpal tunnel release; ECTR, endoscopic carpal tunnel release; SD, standard deviation; IV, inverse-variance; CI, confidence interval; df, degrees of freedomBack to article page