“Comparing Physician Billing Claims and Prescription Drug Data for Diabetes Case Ascertainment in Canada: A Provincial Analysis with Implications for Incidence Rate Accuracy”

https://pubmed.ncbi.nlm.nih.gov/38117476

This study found that the difference in completeness of physician billing claims for diabetes case ascertainment varies by province in Canada, and using prescription drug data as a reference source can help adjust and improve the accuracy of disease incidence rates.