Sampling structure
cancer
CANCER
All patients seen by study cancer care teams have primary outcome data collected prior to each visit. In addition, patient visits to clusters that have implemented the intervention are assigned additional questionnaires through the “patient portal,” a web-based tool where patients access information about their visits and medical records. Thus, each patient will have repeated measures over time, with all measures will be attributed to the same cancer care team. In addition, a patient may have visits to a cancer care team during both control and intervention steps of a cluster sequence. In this case, outcome measures will be assigned to the respective treatment status. Patients will enter and leave the trial over the entire study period. Preliminary data suggest the average gap between the first and last date of a patient assessment to be about 50 days, or less than one-fourth the length of each study step.