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Table 2 Schedule for data collection: outcome measures per visit

From: Bee venom acupuncture for the treatment of chronic low back pain: study protocol for a randomized, double-blinded, sham-controlled trial

Measures Baseline (Week 0) Week 1 Week 2 Week 3 Week 4 Week 8 Week 12
Sociodemographic characteristics x       
Back pain history x       
X-ray x       
Visual analogue scale for bothersomeness of low back pain x x x x x x x
Visual analogue scale for pain intensity of low back pain x x x x x x x
Oswestry Disability Index x x x x x x x
EuroQol-5D x x x x x x x
Beck's Depression Inventory x x x x x x x
Adverse experiencesa   x x x x   x
Credibility testb x    x    
  1. a. Adverse experiences : Any adverse experiences at any visit during treatment sessions and 12 weeks will be monitored. The research team will review all trial protocols, monitor patient safety and investigate any adverse events. b. Credibility test : The credibility of the real and sham treatments will be assessed using the validated Korean version of the credibility test.