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Follow-up Times for Colorectal Cancer Screening Abnormalities Lag Behind Others

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Key Points

  • The study reported the percentages of individuals with abnormal screening exams receiving timely follow-up were: 93.2% to 96.7% of women across breast centers, 46.8% to 68.7% of individuals across colorectal centers, and 46.6% of women at the cervical center.
  • Study authors cited a number of factors that could contribute to the variation in timely follow up, including the underlying complexity of coordinating the next steps in clinical care, differences in the severity of abnormalities detected, and the type of follow-up required.
  • The authors also noted the presence of federal policies for breast and cervical cancer screening, and the nonexistence of such policies for colorectal cancer screening. 

Follow-up times of abnormal screening exams were shorter for breast cancer than they were for colorectal and cervical cancers, according to a recent study involving more than 1 million individuals who underwent these screenings.

Recently published by Tosteson et al in the Journal of General Internal Medicine, the study reported the percentages of individuals with abnormal screening exams receiving timely follow-up were: 93.2% to 96.7% of women across breast centers, 46.8% to 68.7% of individuals across colorectal centers, and 46.6% of women at the cervical center.

Led by Anna Tosteson, ScD, the James J. Carroll Professor of Oncology at the Geisel School of Medicine and a faculty member at The Dartmouth Institute for Health Policy & Clinical Practice, the study characterized cancer screening practice variation across seven centers participating in the National Cancer Institute–sponsored PROSPR (Population-based Research Optimizing Screening through Personalized Regimens) consortium. Cancer screening abnormality rates and their timely follow-up were examined across the centers and among primary care practices within centers.

Reasons for Follow-up Abnormalities

The study's authors called the variation in timely screening abnormality follow-up “concerning” and cited a number of factors that could contribute to the variation in timely follow-up, including the underlying complexity of coordinating the next steps in clinical care, differences in the severity of abnormalities detected, and the type of follow-up required. They stated, for example, that the “lower follow-up rates for colorectal cancer screening abnormalities may be due to the perceived inconvenience and invasive nature of the procedures involved,” adding that patients undergoing colonoscopy “typically need to take time off work, which may pose a barrier especially for lower-income individuals.”

The study's authors also noted that federal policies and regulations that encourage timely cancer screening might affect screening follow-up even more than individual patient and health system factors. Such policies exist for breast and cervical cancer screening but are nonexistent for colorectal cancer screening.

“The documented variation in follow-up of abnormal cancer screening tests across centers and primary care practices highlights opportunities for improving cancer screening,” Dr. Tosteson said, noting that this is the first PROSPR study to make cross-organ comparisons in screening outcomes.

The content in this post has not been reviewed by the American Society of Clinical Oncology, Inc. (ASCO®) and does not necessarily reflect the ideas and opinions of ASCO®.


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