Screening colonoscopy and flexible sigmoidoscopy for reduction of colorectal cancer incidence: A case-control study.

ABSTRACT:

Background

Flexible sigmoidoscopy and colonoscopy are both recommended colorectal cancer screening options, but their relative effectiveness needs clarification. The aim of this study was to compare the effectiveness of colonoscopy and flexible sigmoidoscopy for reduction of colorectal cancer incidence.

Methods

We conducted a case-control study within the linked Surveillance, Epidemiology, and End Results (SEER)-Medicare database. Cases were subjects age 70-85 years in the SEER-Medicare database diagnosed with CRC during 2004-2013. Up to 3 controls were matched to each case by birth year, sex, race, and SEER region. Receipt of screening colonoscopy or flexible sigmoidoscopy was ascertained from Medicare claims. Conditional logistic regression models were developed to estimat

SUBMITTER: Ko CW 

PROVIDER: S-EPMC6894764 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature