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Cancer research

Suboptimal Screening Adherence for Colorectal, Cervical, and Lung Cancer Revealed

Strategic Insights

— 1 min read

Researchers have conducted a study on the effectiveness of screening for colorectal, cervical, and lung cancer, revealing suboptimal adherence to recommended screening intervals. The study, published in the Journal of General Internal Medicine, found that completion of the next screening round was only 62% for colorectal, 56% for cervical, and 56% for lung cancer. For colorectal screening, over the next two rounds of testing, 53% were consistent, 33% inconsistent, and 14% had no repeat screens. The comparable percentages over 3+ rounds for colorectal were 40% consistent, 50% inconsistent, and 11% had no repeat screens.

Key Takeaways:

  • The study found that completion of the next screening round was only 62% for colorectal, 56% for cervical, and 56% for lung cancer.
  • For colorectal screening, over the next two rounds of testing, 53% were consistent, 33% inconsistent, and 14% had no repeat screens.
  • The comparable percentages over 3+ rounds for colorectal were 40% consistent, 50% inconsistent, and 11% had no repeat screens.
  • For lung cancer screening, over the next two rounds, 47% were consistent, 31% inconsistent, and 22% had no repeat screens.
  • The proportions over 3+ rounds for lung cancer were 44% consistent, 42% inconsistent, and 14% had no repeat screens.
  • The health system was the strongest predictor of repeat and consistent testing, with three- to ten-fold variation.
  • System-level strategies are needed to increase screening adherence given the strong relationship between health system and outcomes.

Statistics:

  • Sample size for colorectal screening: 1,566,346
  • Colorectal screeners mean age at index: 58.2 years
  • Hispanic and/or non-white percentage for colorectal screeners: 49%
  • Completion of the next screening round for colorectal, cervical, and lung cancer: 62%, 56%, 56%, respectively
  • Consistency of repeated screening for colorectal over 2 rounds: 53%
  • Inconsistency of repeated screening for colorectal over 2 rounds: 33%
  • No repeat screens for colorectal over 2 rounds: 14%
  • Proportion of consistent screening for lung cancer over 2 rounds: 47%
  • Proportion of inconsistent screening for lung cancer over 2 rounds: 31%
  • Proportion of no repeat screens for lung cancer over 2 rounds: 22%

Sources:

  • Longitudinal Adherence to Screening for Colorectal, Cervical, and Lung Cancer in a US Consortium. Journal of General Internal Medicine, 2025.
  • Rutgers University Robert Wood Johnson Medical School.
  • Ethan A. Halm, Dept. of Medicine, Rutgers University Robert Wood Johnson Medical School, 112 Paterson Street, New Brunswick, NJ, 08901, United States.

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