Medicine and Health Sciences Commons^™

Screening Colonoscopy And Risk For Incident Late-Stage Colorectal Cancer Diagnosis In Average-Risk Adults: A Nested Case-Control Study, Chyke Doubeni, Sheila Weinmann, Kenneth Adams, Aruna Kamineni, Diana Buist, Arlene Ash, Carolyn Rutter, V. Paul Doria-Rose, Douglas Corley, Robert Greenlee, Jessica Chubak, Andrew Williams, Aimee Kroll-Desrosiers, Eric Johnson, Joseph Webster, Kathryn Richert-Boe, Theodore Levin, Robert Fletcher, Noel Weiss

Chyke A. Doubeni

BACKGROUND: The effectiveness of screening colonoscopy in average-risk adults is uncertain, particularly for right colon cancer. OBJECTIVE: To examine the association between screening colonoscopy and risk for incident late-stage colorectal cancer (CRC). DESIGN: Nested case-control study. SETTING: Four U.S. health plans. PATIENTS: 1039 average-risk adults enrolled for at least 5 years in one of the health plans. Case patients were aged 55 to 85 years on their diagnosis date (reference date) of stage IIB or higher (late-stage) CRC during 2006 to 2008. One or 2 control patients were selected for each case patient, matched on birth year, sex, health plan, …

Factors Associated With Inadequate Colorectal Cancer Screening With Flexible Sigmoidoscopy, Adeyinka Laiyemo, Chyke Doubeni, Paul Pinsky, V. Paul Doria-Rose, Andrew Sanderson, Robert Bresalier, Joel Weissfeld, Robert Schoen, Pamela Marcus, Phillip Prorok, Christine Berg

Chyke A. Doubeni

BACKGROUND AND STUDY AIM: Inadequate colorectal cancer screening wastes limited endoscopic resources. We examined patients factors associated with inadequate flexible sigmoidoscopy (FSG) screening at baseline screening and repeat screening 3-5 years later in 10 geographically-dispersed screening centers participating in the ongoing Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial.

METHODS: A total of 64,554 participants (aged 55-74) completed baseline questionnaires and underwent FSG at baseline. Of these, 39,385 participants returned for repeat screening. We used logistic regression models to assess factors that are associated with inadequate FSG (defined as a study in which the depth of insertion of FSG was …

Self-Reported Colorectal Cancer Screening Of Medicare Beneficiaries In Family Medicine Vs. Internal Medicine Practices In The United States: A Cross-Sectional Study, Angela Higgins, Anna Doubeni, Karon Phillips, Adeyinka Laiyemo, Becky Briesacher, Jennifer Tjia, Chyke Doubeni

Chyke A. Doubeni

BACKGROUND: The benefit of screening for decreasing the risk of death from colorectal cancer (CRC) has been shown, yet many patients in primary care are still not undergoing screening according to guidelines. There are known variations in delivery of preventive health care services among primary care physicians. This study compared self-reported CRC screening rates and patient awareness of the need for CRC screening of patients receiving care from family medicine (FPs) vs. internal medicine (internists) physicians. METHODS: Nationally representative sample of non-institutionalized beneficiaries who received medical care from FPs or internists in 2006 (using Medicare Current Beneficiary Survey). The main …