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. 2020 Mar 23;10(3):e033507. doi: 10.1136/bmjopen-2019-033507

Table 4.

Precision estimates for the overall population

Width of the 95% CI Overall population
n=930
33% of overall population
n=310
Binary data–widest width 6.4% 11.1%
Normal data 0.13 SD 0.22 SD