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Table 2 Sample size estimates for the trial

From: The evaluation of a tailored intervention to improve the management of suspected viral encephalitis: protocol for a cluster randomised controlled trial

Number of eligible patients recruited per hospital (M)

Proportion meeting the primary outcome criteria under the intervention ( P )

0.15

0.20

0.25

10

0.487

0.707

0.845

15

0.547

0.777

0.907

20

0.590

0.809

0.921

25

0.606

0.832

0.937