Fig. 1
From: Recent advances in methodology for clinical trials in small populations: the InSPiRe project
Jittered boxplot of phase 2 and phase 3 trials with either actual (brown triangle) or anticipated (blue dot) sample size by prevalence class. Each symbol represents one observation and the mean sample size is indicated by the red diamond. Number of trials contributing to the plot is given at the top row, median sample size in the second row, first quartile in the third row and the third quartile in the last row of the bottom of each boxplot. Figure reproduced from [8] under CC BY 4.0 License [49]