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. 2021 Feb 11;11(2):e045162. doi: 10.1136/bmjopen-2020-045162

Table 2.

Sample size calculation for adverse events with associated CIs

Subjects with no related adverse events (n) Subjects
experiencing a related adverse event (n)
Lower bound of the 95%
exact binomial CI for safety
30 0 90%
29 1 85%
28 2 80%
27 3 76%