Comparative Effectiveness of Multifaceted Outreach to Initiate Colorectal Cancer Screening in Community Health Centers: A Randomized Controlled Trial

Colorectal cancer (CRC) screening rates are low among vulnerable populations. Fecal immunochemical tests (FITs) are one screening modality with few barriers. Studies have shown that outreach can improve CRC screening, but little is known about its effectiveness among individuals with no CRC screening history. We sought to determine whether outreach increases FIT uptake among patients with no CRC screening history compared to usual care. This study was a patient-level randomized controlled trial, including 420 patients who had never completed CRC screening and were eligible for FIT; 66 % were female, 62.1 % were Latino, and 70.7 % were uninsured. The main outcome measure was FIT completion within 6 months of the randomization date. We assessed FIT completion at different time points corresponding to receipt of outreach components. All analyses were re-run with 12-month data. Patients who received outreach were more likely to complete FIT than those in usual care (36.7 % vs. 14.8 %; p < 0.001). FIT completion was more common among patients with increased clinic visits. The difference in FIT completion between the outreach and usual care groups decreased over time. The intervention improved FIT uptake among patients with no CRC screening history. However, the intervention was less effective than in a previous trial targeting patients due for repeat screening. Additional research is needed to determine the best methods for improving CRC screening among this hard-to-reach group.