Cohort Attrition Study Results II: PAQS Query 3

- There are some sites that deviate from the rest of the network, both when examining retention starting from step 0 and step 3. Some sites, like C13AVH, have a more significant loss of patients between step 0 and step 1. - When examining the results starting at step 3, some sites have a larger dropoff between steps 5 and 6 compared to the rest of the network. This could indicate poor lab representation at these institutions or mapping discrepancy when compared to the rest of the network. - The cohort was extracted at step 8, but there is also disparate site behavior at step 10, indicating potential issues with prescription capture or differences in prescribing habits at some institutions.