Factors predicting missing instruments in three cancer randomized clinical trials.
Michael J PalmerHarriet RichardsonDongsheng TuMichael BrundagePublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2021)
Many factors reported to have association with missing instruments do not seem to predict time to the first missing instrument after randomization in RCTs. Context is important in understanding the few that may.