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A variable that records something about a study unit in a longitudinal study that changes over the course of the study.

1 vote
1 answer
40 views

How to test for relationship between cumulative intake and outcome over time in single arm s...

I have a one group trial with n = 100. I want to analyze the relationship between the accumulated amount of drug intake (continuous) and the effect (measured by symptom score). For example, for diffe …