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. 2015 Nov 23;5(11):e009879. doi: 10.1136/bmjopen-2015-009879

TableĀ 3.

Difference detectable for various rates of the factor of interest and proportions of admissions classified as preventable

Proportion classified as preventable
15% 25% 35%
Rate of factor of interest in non-preventable groups Difference detectable
10% 11.7% 9.5% 8.6%
20% 14.4% 11.7% 10.6%