Dear colleague,

I am looking for advice regarding my research project. I collect number of patients with diagnosis and number of patinet with those diagnosis who were screened for sertain conditions each year 2019/2020/2021 (for instance blood glucose among diabetes patients). Therefore, those two numbers provide a rate for specific year. My idea is to compare those rates between years. However, I am not sure what kind of test to use? Fluctuation between years in denominator were not so big beyond natural flow. But, I also think that someone who skipp a screening one year has to intention to skipp it again.

Any other idea and solutions are welcome

Thnaks for your replays.

Best,

Aleksandar