Sample size estimation for comparing rates of change in K-group repeated binary measurements studies

In clinical research, longitudinal trials are frequently conducted to evaluate the treatment effect by comparing trends in repeated measurements among different intervention groups. For such longitudinal trials, many researchers have developed the sample size estimation methods for comparison between two groups measurements. In contrast, relatively less attention has been paid to trials with K-group (K≥3) comparison. Jung and Ahn (2004 Jung, S....