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. 2017 Aug 29;2017(8):CD006418. doi: 10.1002/14651858.CD006418.pub3

2. Optimal information size calculations.

Outcome Assumed risk Source Clinically important relative reduction Sample size required1,2
Active TB 46/366 (13%) Analysis 1.1 25% 2990
Death 15/366 (4%) Analysis 1.2 50% 2282

1We based all calculations on: 2‐sided tests, with a ratio of 1:1, power of 0.8, and confidence level of 0.05.
 2We performed all calculations using: sealedenvelope.com/power/binary‐superiority