Publications by authors named "J Bonfrer"

Article Synopsis
  • Individuals with lower socioeconomic status (SES) showed significantly lower participation rates in colorectal cancer (CRC) screening compared to those with higher SES, suggesting an influence on health inequalities.
  • Analysis revealed that while the detection rate of advanced neoplasia was higher among those with lower SES, their overall participation led to similar diagnostic yields when compared to higher SES groups.
  • The study highlights a potential for screening to reduce health disparities in CRC mortality, but lower participation rates among lower SES groups currently counteract this benefit in the Dutch screening program.
View Article and Find Full Text PDF

Background: Quality assessment is crucial for consistent program performance of colorectal cancer (CRC) screening programs using fecal immunochemical test for hemoglobin (FIT). However, literature on the consistency of FIT performance in laboratory medicine was lacking. This study examined the consistency of FIT in testing positive or detecting advanced neoplasia (AN) for different specimen collection devices, lot reagents, and laboratories.

View Article and Find Full Text PDF

Background & Aims: After careful pilot studies and planning, the national screening program for colorectal cancer (CRC), with biennial fecal immunochemical tests (FITs), was initiated in The Netherlands in 2014. A national information system for real-time monitoring was developed to allow for timely evaluation. Data were collected from the first year of this screening program to determine the importance of planning and monitoring for optimal screening program performance.

View Article and Find Full Text PDF

Objective: To present an update of the European Group on Tumor Markers guidelines for serum markers in epithelial ovarian cancer.

Methods: Systematic literature survey from 2008 to 2013. The articles were evaluated by level of evidence and strength of recommendation.

View Article and Find Full Text PDF

The Dutch National Institute for Public Health and the Environment (RIVM) awarded the immunochemical faecal occult blood test (IFOBT) to FOB Gold of Sentinel following a European call for tenders. The contract-awarding procedure included the application of quality knock-out criteria, which were met by two suppliers. The decisive factor was the best price/quality ratio.

View Article and Find Full Text PDF