Abstract
Purpose
In recent years, colorectal cancer (CRC) screening rates have increased steadily in the USA, though racial and ethnic disparities persist. In a community-based randomized controlled trial, we investigated the effect of patient navigation on increasing CRC screening adherence among older African Americans.
Methods
Participants in the Cancer Prevention and Treatment Demonstration were randomized to either the control group, receiving only printed educational materials (PEM), or the intervention arm where they were assigned a patient navigator in addition to PEM. Navigators assisted participants with identifying and overcoming screening barriers. Logistic regression analyses were used to assess the effect of patient navigation on CRC screening adherence. Up-to-date with screening was defined as self-reported receipt of colonoscopy/sigmoidoscopy in the previous 10 years or fecal occult blood testing (FOBT) in the year prior to the exit interview.
Results
Compared with controls, the intervention group was more likely to report being up-to-date with CRC screening at the exit interview (OR 1.55, 95 % CI 1.07–2.23), after adjusting for select demographics. When examining the screening modalities separately, the patient navigator increased screening for colonoscopy/sigmoidoscopy (OR 1.53, 95 % CI 1.07–2.19), but not FOBT screening. Analyses of moderation revealed stronger effects of navigation among participants 65–69 years and those with an adequate health literacy level.
Conclusions
In a population of older African Americans adults, patient navigation was effective in increasing the likelihood of CRC screening. However, more intensive navigation may be necessary for adults over 70 years and individuals with low literacy levels.
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Acknowledgments
The authors would like to thank the Cancer Prevention and Treatment Demonstration participants, staff, and Community Advisory Committee. This work was supported by the Cancer Prevention and Treatment Demonstration for Ethnic and Racial Minorities of the Centers for Medicare and Medicaid Services (Cooperative Agreement #1A0CMS300066), the Community Networks Program (Grant U54CA153710) of the National Cancer Institute, the Maryland Cigarette Restitution Fund. In addition, Dr. M. A. Garza was supported, in part, through her Mentored Research Scientist Development Award to Promote Diversity (K01CA140358).
Conflict of interest
J.G. Ford is a consultant/advisory board member of GSK. The remaining authors declare that they have no conflict of interest.
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Horne, H.N., Phelan-Emrick, D.F., Pollack, C.E. et al. Effect of patient navigation on colorectal cancer screening in a community-based randomized controlled trial of urban African American adults. Cancer Causes Control 26, 239–246 (2015). https://doi.org/10.1007/s10552-014-0505-0
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DOI: https://doi.org/10.1007/s10552-014-0505-0