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Table 1 TALON-2 study sample size estimates

From: Feasibility and diagnostic accuracy of Telephone Administration of an adapted wound heaLing QuestiONnaire for assessment for surgical site infection following abdominal surgery in low and middle-income countries (TALON): protocol for a study within a trial (SWAT)

Patients recruited to host trial Patients retained for follow-up Paired WHQ and in-person follow-up Patients with SSIa Patients without SSIb Precision around test accuracy measures
Sensitivity (95% C.I.) Specificity (95% C.I.)
714 607 516 108 408 0.92 (0.85–0.96) 0.95 (0.93–0.97)
571 485 412 87 325 0.92 (0.84–0.97) 0.95 (0.92–0.97)
428 364 309 65 244 0.92 (0.83–0.97) 0.95 (0.92–0.97)
285 242 206 43 163 0.92 (0.81–0.99) 0.95 (0.91–0.98)
  1. a0.21 * number paired WHQ and in-person follow-up
  2. b0.79 * number paired WHQ and in-person follow-up