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Table 1 Margins of error of estimation based on 50 patients in the implantation strategy arm

From: Does a Screening Trial for Spinal Cord Stimulation in Patients with Chronic Pain of Neuropathic Origin have Clinical Utility and Cost-Effectiveness? (TRIAL-STIM Study): study protocol for a randomised controlled trial

Margin of error Sensitivitya (%) Specificitya (%)
100% 8.9 30.9
80% 26.6 53.3
60% 31.8 61.6
40% 31.8 61.6
  1. aAssuming 40/50 patients have ≥ 50% pain relief at 6 months