Comparative effectiveness of fecal immunochemical test outreach, colonoscopy outreach, and usual care for boosting colorectal cancer screening among the underserved: A randomized clinical trial
Mené auprès de 5 970 participants ne possédant pas d'assurance médicale et habitant une région médicalement mal desservie de l'Etat du Texas (âge : 54 à 64 ans), cet essai évalue, par rapport à une consultation médicale, l'efficacité de courriers invitant à utiliser un test immunochimique de recherche de sang dans les selles ou à subir une coloscopie pour augmenter le taux de participation au dépistage du cancer colorectal
Importance : Colorectal cancer (CRC) screening saves lives, but participation rates are low among underserved populations. Knowledge on effective approaches for screening the underserved, including best test type to offer, is limited.
Objective : To determine if organized mailed outreach boosts CRC screening compared with usual care and if FIT is superior to colonoscopy outreach for CRC screening participation in an underserved population.
Design, Setting, and Participants : We identified uninsured patients, not up to date with CRC screening, age 54 to 64 years, served by the John Peter Smith Health Network, Fort Worth and Tarrant County, Texas, a safety net health system.
Interventions : Patients were assigned randomly to 1 of 3 groups. One group was assigned to fecal immunochemical test (FIT) outreach, consisting of mailed invitation to use and return an enclosed no-cost FIT (n = 1 593). A second was assigned to colonoscopy outreach, consisting of mailed invitation to schedule a no-cost colonoscopy (n = 479). The third group was assigned to usual care, consisting of opportunistic primary care visit–based screening (n= 3 898). In addition, FIT and colonoscopy outreach groups received telephone follow-up to promote test completion.
Main Outcome Measures Screening participation in any CRC test within 1 year after randomization.
Results : Mean patient age was 59 years; 64% of patients were women. The sample was 41% white, 24% black, 29% Hispanic, and 7% other race/ethnicity. Screening participation was significantly higher for both FIT (40.7%) and colonoscopy outreach (24.6%) than for usual care (12.1%) (P < .001 for both comparisons with usual care). Screening was significantly higher for FIT than for colonoscopy outreach (P < .001). In stratified analyses, screening was higher for FIT and colonoscopy outreach than for usual care, and higher for FIT than for colonoscopy outreach among whites, blacks, and Hispanics (P < .005 for all comparisons). Rates of CRC identification and advanced adenoma detection were 0.4% and 0.8% for FIT outreach, 0.4% and 1.3% for colonoscopy outreach, and 0.2% and 0.4% for usual care, respectively (P < .05 for colonoscopy vs usual care advanced adenoma comparison; P > .05 for all other comparisons). Eleven of 60 patients with abnormal FIT results did not complete colonoscopy.
Conclusions and Revelance : Among underserved patients whose CRC screening was not up to date, mailed outreach invitations resulted in markedly higher CRC screening compared with usual care. Outreach was more effective with FIT than with colonoscopy invitation.Trial Registration clinicaltrials.gov Identifier: NCT01191411
JAMA Internal Medicine , résumé, 2012