National Healthcare Quality and Disparities Report
Latest available findings on quality of and access to health care
Data
- Data Infographics
- Data Visualizations
- Data Tools
- Data Innovations
- All-Payer Claims Database
- Healthcare Cost and Utilization Project (HCUP)
- Medical Expenditure Panel Survey (MEPS)
- AHRQ Quality Indicator Tools for Data Analytics
- State Snapshots
- United States Health Information Knowledgebase (USHIK)
- Data Sources Available from AHRQ
Search All Research Studies
Topics
- Cancer (3)
- Cancer: Colorectal Cancer (1)
- Comparative Effectiveness (1)
- (-) Digestive Disease and Health (6)
- Education: Continuing Medical Education (1)
- (-) Evidence-Based Practice (6)
- Healthcare Utilization (1)
- Imaging (1)
- Nutrition (1)
- Outcomes (1)
- Patient-Centered Outcomes Research (3)
- Prevention (1)
- Research Methodologies (1)
- Risk (1)
- Screening (1)
- Surgery (1)
- Treatments (1)
AHRQ Research Studies
Sign up: AHRQ Research Studies Email updates
Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 6 of 6 Research Studies DisplayedKim HS, Hernaez R, Sansgiry S
Comparative effectiveness of surveillance colonoscopy intervals on colorectal cancer outcomes in a national cohort of patients with inflammatory bowel disease.
The purpose of this study was to determine the comparative effectiveness of varying colonoscopy intervals on colorectal cancer (CRC) outcomes among patients with inflammatory bowel disease (IBD). Data was from the National Veterans Health Administration. Findings showed that, in a national cohort of patients with CRC-IBD, colonoscopy within 3 years prior to CRC diagnosis was associated with early tumor stage at diagnosis, and colonoscopy within 1 year was associated with a reduced all-cause mortality compared with no colonoscopy, supporting colonoscopy intervals of 1 to 3 years in patients with IBD in order to reduce late-stage CRC and all-cause mortality.
AHRQ-funded; HS024122.
Citation: Kim HS, Hernaez R, Sansgiry S .
Comparative effectiveness of surveillance colonoscopy intervals on colorectal cancer outcomes in a national cohort of patients with inflammatory bowel disease.
Clin Gastroenterol Hepatol 2022 Dec;20(12):2848-57.e2. doi: 10.1016/j.cgh.2022.02.048..
Keywords: Cancer: Colorectal Cancer, Cancer, Digestive Disease and Health, Imaging, Screening, Comparative Effectiveness, Evidence-Based Practice, Patient-Centered Outcomes Research
Shah SC, Dai Zhu, X
Associations between calcium and magnesium intake and the risk of incident gastric cancer: a prospective cohort analysis of the National Institutes of Health-American Association of Retired Persons (NIH-AARP) Diet and Health Study.
Gastric cancer remains a leading cause of cancer-related mortality. Identifying dietary and other modifiable disease determinants has important implications for risk attenuation in susceptible individuals. The primary aim of the investigators was to estimate the association between dietary and supplemental intakes of calcium and magnesium and the risk of incident gastric cancer. They conducted a prospective cohort analysis of the National Institutes of Health-American Association of Retired Persons Diet and Health Study.
AHRQ-funded; HS026395.
Citation: Shah SC, Dai Zhu, X .
Associations between calcium and magnesium intake and the risk of incident gastric cancer: a prospective cohort analysis of the National Institutes of Health-American Association of Retired Persons (NIH-AARP) Diet and Health Study.
Int J Cancer 2020 Jun 1;146(11):2999-3010. doi: 10.1002/ijc.32659..
Keywords: Cancer, Digestive Disease and Health, Risk, Prevention, Nutrition, Patient-Centered Outcomes Research, Evidence-Based Practice
Khorfan R, Schlick CJR, Yang AD
Utilization of minimally invasive surgery and its association with chemotherapy for locally advanced gastric cancer.
This study compared outcomes of patients with T3 or greater and/or N+ gastric carcinoma who had minimally invasive surgery (MIS) or traditional open surgery. Patients who received MIS had a greater likelihood of receiving postoperative chemotherapy. Patients from the National Cancer Database (21,872) from 2010 to 2015 were identified. The majority (72.2%) received open surgery although MIS rates went up during that time period. Predictors of MIS were Asian race, any insurance coverage and treatment at high-volume centers. Survival rates were higher for MIS patients although that could be explained by their increased likelihood of receiving adjuvant chemotherapy.
AHRQ-funded; HS026385.
Citation: Khorfan R, Schlick CJR, Yang AD .
Utilization of minimally invasive surgery and its association with chemotherapy for locally advanced gastric cancer.
J Gastrointest Surg 2020 Feb;24(2):243-52. doi: 10.1007/s11605-019-04410-x.
.
.
Keywords: Surgery, Treatments, Cancer, Digestive Disease and Health, Healthcare Utilization, Patient-Centered Outcomes Research, Outcomes, Evidence-Based Practice
Shah SC, Tepler A, Peek RM
Association between Helicobacter pylori exposure and decreased odds of eosinophilic esophagitis-a systematic review and meta-analysis.
Previous or current infection with Helicobacter pylori (exposure) has been reported to protect against eosinophilic esophagitis (EoE), perhaps owing to H pylori-induced immunomodulation. However, findings vary. In this study the investigators performed a systematic review and meta-analysis of comparative studies to define the association between H pylori exposure and EoE more clearly. The investigators found evidence for a significant association between H pylori exposure and reduced odds of EoE.
AHRQ-funded; HS026395.
Citation: Shah SC, Tepler A, Peek RM .
Association between Helicobacter pylori exposure and decreased odds of eosinophilic esophagitis-a systematic review and meta-analysis.
Clin Gastroenterol Hepatol 2019 Oct;17(11):2185-98.e3. doi: 10.1016/j.cgh.2019.01.013..
Keywords: Digestive Disease and Health, Evidence-Based Practice
Tepler A, Narula N, Peek RM
Systematic review with meta-analysis: association between Helicobacter pylori CagA seropositivity and odds of inflammatory bowel disease.
Accumulating data support a protective role of Helicobacter pylori against inflammatory bowel diseases (IBD), which might be mediated by strain-specific constituents, specifically cagA expression. The aim of this study was to perform a systematic review and meta-analysis to more clearly define the association between CagA seropositivity and IBD. The investigators found evidence for a significant association between CagA seropositive H pylori exposure and reduced odds of IBD, particularly CD, but not for CagA seronegative H pylori exposure.
AHRQ-funded; HS026395.
Citation: Tepler A, Narula N, Peek RM .
Systematic review with meta-analysis: association between Helicobacter pylori CagA seropositivity and odds of inflammatory bowel disease.
Aliment Pharmacol Ther 2019 Jul;50(2):121-31. doi: 10.1111/apt.15306..
Keywords: Digestive Disease and Health, Evidence-Based Practice
Aggarwal R, Brown KM, de Groen PC
AHRQ Author: Henriksen K
Simulation research in gastrointestinal and urologic care-challenges and opportunities: summary of a National Institute of Diabetes and Digestive and Kidney Diseases and National Institute of Biomedical Imaging and Bioengineering workshop.
The purpose of the workshop was to examine the extent to which simulation approaches have been used by skilled proceduralists (not trainees) caring for patients with gastrointestinal and urologic diseases. The current status of research findings in the use and effectiveness of simulation applications was reviewed, and numerous knowledge gaps and research needs were identified by the faculty and the attendees.
AHRQ-authored.
Citation: Aggarwal R, Brown KM, de Groen PC .
Simulation research in gastrointestinal and urologic care-challenges and opportunities: summary of a National Institute of Diabetes and Digestive and Kidney Diseases and National Institute of Biomedical Imaging and Bioengineering workshop.
Ann Surg 2018 Jan;267(1):26-34. doi: 10.1097/sla.0000000000002228.
.
.
Keywords: Digestive Disease and Health, Education: Continuing Medical Education, Evidence-Based Practice, Research Methodologies