Any imaging completion
At 6 months after the initial outreach, 59.4% (95% CI: 52.9–65.8) completed any imaging (US, MRI, or CT) in the Letter + Order arm, 57.2% (95% CI: 50.7–63.7) completed any imaging in the Letter + Order + Incentive arm, and 32.8% (95% CI: 24.2–41.3) completed any imaging in the Usual Care arm. There was a significant increase in the imaging response rate in the Letter + Order arm compared to the Usual care arm (absolute difference of 26.6%; 95% CI: 15.9–37.3; Proportion of patients completing any imaging (US, MRI, or CT) in the 6-month period
