Predictors of colorectal cancer surveillance among survivors of childhood cancer treated with radiation: a report from the Childhood Cancer Survivor Study.

Journal Article

BACKGROUND: Childhood cancer survivors treated with radiotherapy to a field including the colon or rectum have an elevated risk of developing radiation-induced colorectal cancer (CRC). The Children's Oncology Group recommends colonoscopy every 5 years beginning at age 35 years for at-risk survivors. METHODS: Analyses included 702 five-year survivors (Childhood Cancer Survivor Study) aged ≥36 years who received ≥30 gray of abdominal, pelvic, or spinal radiotherapy. Multivariate generalized linear models were used to calculate relative risks (RR) with 95% confidence intervals (95% CI) for adherence to the Children's Oncology Group's CRC surveillance recommendations. RESULTS: With a median age of 43 years (range, 36-58 years), 29.5% of the survivors (207 of 702 survivors) met surveillance recommendations. In multivariate analyses, age ≥50 years versus age 36 to 49 years (RR, 2.6; 95% CI, 2.0-3.4), reporting a routine cancer follow-up visit within 1 year before the study (RR, 1.5; 95% CI, 1.0-2.2), reporting ≥10 physician visits within the past year versus 0 to 9 visits (RR, 1.4; 95% CI, 1.1-1.7), and discussing future cancer risk with a physician at the time of the most recent follow-up visit (RR, 1.4; 95% CI, 1.1-1.7) were found to be associated with adherence to CRC surveillance recommendations. CONCLUSIONS: Greater than 70% of survivors at an increased risk of CRC were not screened as recommended. Regular physician contact and discussion of screening were associated with a 60% increase in CRC surveillance. Educational interventions targeted at survivors and their primary care physicians are needed to heighten knowledge of CRC risk after radiotherapy and the importance of appropriate surveillance.

Full Text

Duke Authors

Cited Authors

  • Daniel, CL; Kohler, CL; Stratton, KL; Oeffinger, KC; Leisenring, WM; Waterbor, JW; Whelan, KF; Armstrong, GT; Henderson, TO; Krull, KR; Robison, LL; Nathan, PC

Published Date

  • June 1, 2015

Published In

Volume / Issue

  • 121 / 11

Start / End Page

  • 1856 - 1863

PubMed ID

  • 25649858

Pubmed Central ID

  • 25649858

Electronic International Standard Serial Number (EISSN)

  • 1097-0142

Digital Object Identifier (DOI)

  • 10.1002/cncr.29265


  • eng

Conference Location

  • United States