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Table 2 Infection rates and sample size

From: Reduction of surgical site infection using a novel intervention (ROSSINI): study protocol for a randomised controlled trial

Infection rate in untreated group

Expected infection rate in treated group

Overall sample size

Sample size in each arm

18%

9%

448

224

15%

7.5%

554

277

12%

6%

710

355

  1. (80% power and 0.05 significance level)
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Trials

ISSN: 1745-6215