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Patient navigators appear to improve colorectal cancer screening rate in ethnically diverse patients

Among low-income patients who are black or whose primary language is not English, patient navigators may help improve colorectal cancer (CRC) screening rates, according to a report in the May 23 issue of Archives of Internal Medicine, one of the JAMA/Archives journals. The article is part of the journal's Health Care Reform series.

According to background information in the article, CRC is one of the country's main causes of cancer deaths. "Nevertheless," the authors write, "approximately 40 percent of eligible adults in the United States and more foreign-born U.S. residents are overdue for CRC screening," especially those who are racial minorities, have Medicaid or lack health insurance, are immigrants, or socioeconomically disadvantaged. Studies have shown that patient navigatorscommunity members who guide and support patients in receiving carecan positively affect CRC screening rates.

Karen E. Lasser, M.D., M.P.H., from the Boston University School of Public Health, and colleagues conducted a randomized, controlled trial to study the role of patient navigators in encouraging screening for CRC. Among the 465 patients enrolled at Cambridge Health Alliance, a Massachusetts-based community health system, the majority was nonwhite, spoke a primary language other than English and had publicly funded health insurance or no coverage. Researchers randomized the patients to 230 receiving usual care and 235 receiving up to six hours of patient navigation (in English, Spanish, Portuguese, or Haitian Creole) in six months. (Of the 235 patients assigned to the intervention group, navigators were able to contact 181, or 77 percent.) The study's principal outcome was completion within one year of CRC screening, and researchers also examined colonoscopy rates in particular as well as the proportion of adenomas or cancers found.

At the one-year mark, 33.6 percent of patients in the intervention group had been screened for CRC, versus 20.0 percent of patients in the control group. Within the intervention group, the screening rate was significantly higher among those whom the navigators reached (39.8 %) as opposed to those who were not able to be contacted (18.6 percent). Those receiving the intervention were more likely to be screened with colonoscopy and to have adenomas discovered. The navigators helped improve screening rates among patients whose primary language was not English and among black patients.

The authors state that their results are similar to those of other studies involving patient navigators. And although they call for further study in this area, they also note that these members of the health care team may be important for reaching underserved populations. "Focusing patient navigation on populations of patients who are black and whose primary language is other than English may be a particularly effective approach to reducing CRC screening disparities for these patients," they conclude.

(Arch Intern Med. 2011;171[10]:906-912. Available pre-embargo to the media at

Editor's Note: This study was supported by a grant from the American Cancer Society. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.

Commentary: Patient Outreach Is Just One Strategy for Improving Primary Care

In a commentary accompanying the article, Thomas Bodenheimer, M.D., from the University of California, San Francisco, notes that the study by Lasser and colleagues demonstrated the value patient navigators can have in encouraging health screenings and other positive behaviors. He also points to other articles in this issue of the journal, namely a study of electronic records and its accompanying commentary, as rounding out the tenets of a patient-centered medical home. Physician shortages and other shifts in primary care, Bodenheimer writes, may leave "team-based care as the only hope." Adopting electronic health records, a clinical registry and health teams comprising patient navigators and other staff may provide the "building blocks" of a patient-centered medical home

(Arch Intern Med. 2011;171[10]:912-913. Available pre-embargo to the media at

Editor's Note: Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.


Contact: Gina DiGravio
JAMA and Archives Journals

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