Fourth, we excluded all Medicare managed care enrollees using the Health Maintenance Organization HMOO) enrollment indicator in the Medicare Denominator files (n = 5,506), because Medicare databases do not collect service utilization data on these patients.
Utilization data on MTO included the country and hospital of treatment, length of stay for the last visit, number of accompanying persons, the number of MTO visits made per year and primary diagnosis for which treatment was given.
Several GPs described an intention to utilize data on the web in the future, although some GPs found that utilization of data on the internet was a very time consuming and complicated process.
Another limitation is the lack of utilization data on deliveries from non-voucher facilities including the public sector, which limits the analysis and comparison of trends in voucher and non-voucher sites.
Regarding utilization data, on which cost estimations are based, the study cannot exclude recall bias, because parents of participating children provide information about the previous 12 months.
This cohort (n = 3510) was anonymously linked at the patient-level to 14 administrative health databases, providing a comprehensive data source that included clinico-demographic and health service utilization data on all persons with a CRC diagnosis in the province.
For instance, in a paper by Chang et al., while Medicare claims and enrollment were used to assess for service utilization, data on BMI were obtained from a merge with the Medicare Current Beneficiary Survey (MCBS).
The study team is collecting utilization data on clinician, nurse, and nutritionist visits; pharmacy data; and San Francisco Health Plan and SF Department of Public Health Healthy San Francisco claims data on pharmacy medications, emergency room visits and hospitalizations.
We prospectively collected clinical and resource utilization data on all such patients for 14 months before and after institution of the guideline.
