Published early online in CANCER, a peer-reviewed journal of the American Cancer Society, the study indicates that differences in areas' capacity for providing these procedures may explain why Hispanics are less likely to undergo colorectal cancer screening than non-Hispanic whites. Increasing screening may require efforts to improve the availability of endoscopy in areas with a high ethnic minority population.
Studies have consistently shown that African Americans and Hispanics are less likely than whites to undergo screening for colorectal cancer. While there are several potential reasons for these disparities, one possibility is that areas where African Americans and Hispanics live may have a more limited availability of endoscopies.
Jennifer Haas, MD, MSPH, of Brigham and Women's Hospital and Harvard Medical School in Boston and colleagues examined whether capacity for providing endoscopies in an area where an individual resides is associated with the use of colorectal cancer screening and the stage or extent of patients' disease at diagnosis. The investigators analyzed data on the use of colorectal cancer screening from the National Health Interview Survey (NHIS) as well as data on colorectal cancer stage from both the Surveillance, Epidemiology, and End Results (SEER) Program and Medicare. (NHIS is a nationally representative household survey that collects information about individuals' demographic characteristics, chronic health conditions, health insurance, and health behaviors. SEER compiles incidence and survival data from population-based cancer registries in the United States.) Measurements of counties' capacity for providing endoscopies were derived from Medicare claims.
The investigators' analysis revealed that Hispanics lived in counties with less capacity for providing endoscopies than African Americans or whites (an average of 1,224, 1,569, and 1,628 procedures per 100,000 individuals age 50 and above respectively). Individuals' use of colorectal cancer screening increased modestly as counties' capacity for providing endoscopies increased. For example, as the number of endoscopies per 100,000 residents increased by 750, the odds of being screened increased by 4 percent.
Disparities in screening were diminished after adjusting for an area's capacity for providing endoscopies, its racial and ethnic composition, and the socioeconomic status of its residents. (Adjusting for these factors ensured that they did not account for the finding.) Among individuals with colorectal cancer, those who lived in counties with less capacity for providing endoscopies were marginally less likely to be diagnosed at an early stage of disease, but after adjusting for an area's characteristics, disparities in cancer stage diminished for Hispanics compared with whites but not for African Americans.
These findings suggest "that interventions designed to reduce disparities in the use of colorectal cancer screening or stage at diagnosis should consider not only improving local capacity for screening but also address other characteristics of the areas that may limit the dissemination of information about the importance of colorectal cancer screening," the authors wrote.
Article: "Association of local capacity for endoscopy with individual use of colorectal cancer screening and stage at diagnosis." Jennifer S. Haas, Phyllis Brawarsky, Aarthi Iyer, Garrett M. Fitzmaurice, Bridget A. Neville, Craig Earle, and Celia Patricia Kaplan. CANCER; Published Online: April 12, 2010 (DOI: 10.1002/cncr. 25093).
Author Contact: To arrange an interview with Dr. Haas, please contact Lori Shanks at Brigham and Women's Hospital Public Affairs office: 617-534-1600 or firstname.lastname@example.org
Claire Greenwell | EurekAlert!
Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT
Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
02.12.2016 | Medical Engineering
02.12.2016 | Agricultural and Forestry Science
02.12.2016 | Physics and Astronomy