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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