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. 2018 Jun 4;23(8):765–776. doi: 10.1177/2472555218775028

Table 1.

Probability of Detecting Effects Based on Cohort Size.

Cohort Size (Individual Cell lines) (N) 1 in 10 (Decile) Population Incidence (%) 1 in 4 (Quartile) Population Incidence (%)
24 92 99.9
16 81.5 99.0
4 34.4 68.3

The table provides exact probabilities for common population incidence frequencies and cohort sizes. Monte Carlo simulations were performed assuming a normal distribution of drug toxicity or sensitivity.