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 (1)
- Cancer: Breast Cancer (1)
- Comparative Effectiveness (1)
- Diagnostic Safety and Quality (1)
- Electronic Health Records (EHRs) (1)
- Healthcare Delivery (1)
- Health Services Research (HSR) (2)
- Labor and Delivery (1)
- Maternal Care (3)
- Outcomes (1)
- Patient Adherence/Compliance (1)
- Patient and Family Engagement (1)
- Pregnancy (3)
- Quality Improvement (1)
- Quality of Care (1)
- (-) Research Methodologies (7)
- Risk (1)
- (-) Women (7)
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 7 of 7 Research Studies DisplayedFranc BL, Thombley R, Luo Y
Using diagnosis codes in claims data to identify cohorts of breast cancer patients following initial treatment.
This article describes how researchers trying to study patterns of care and medical service utilization can use diagnosis codes to help identify patients who had undergone initial breast cancer treatment during the first 5 years after treatment for the primary cancer. The authors used claims data of 51,278 newly diagnosed breast cancer (BC) patients from the BC subset of the 2000-2014 SEER-Medicare linked database. From that database they determined the fraction of BC patients who could be identified using BC-specific does 174.x and v10.3 during the year of diagnosis/treatment and during each of the following 5 years after treatment. They then developed a list of diagnosis codes that were found more often in claims from BC patients than in claims of a cohort of patients without a BC diagnosis. They were able to identify BC patients as belonging to 5 different subgroups. In any single year 72.8-99.1% of BC patients had a claim with a174.x diagnosis code. Another 0-11% of BC patients had a v10.3 code. From their findings they concluded that BC patients can be robustly identified within claims databases.
AHRQ-funded; HS024936.
Citation: Franc BL, Thombley R, Luo Y .
Using diagnosis codes in claims data to identify cohorts of breast cancer patients following initial treatment.
Breast J 2020 Jul;26(7):1472-74. doi: 10.1111/tbj.13758..
Keywords: Cancer: Breast Cancer, Cancer, Diagnostic Safety and Quality, Women, Research Methodologies
Vanderlaan J, Dunlop A, Rochat R
Methodology for sampling women at high maternal risk in administrative data.
This study compared the net benefits of using the Obstetric Comorbidity Index (OCI) to identify women at high maternal risk compared to conventional risk identification methods. Hospitalization discharge and vital records data for women experience singleton births in George from 2008 to 2012 was used. Results found there was a small but positive net benefit in using the OCI and conventional risk identification methods actually performed worse than using no risk identification methods at all. The researchers suggest that using OCI helps reduce misclassification.
AHRQ-funded; HS024655.
Citation: Vanderlaan J, Dunlop A, Rochat R .
Methodology for sampling women at high maternal risk in administrative data.
BMC Pregnancy Childbirth 2019 Oct 21;19(1):364. doi: 10.1186/s12884-019-2500-7..
Keywords: Research Methodologies, Health Services Research (HSR), Pregnancy, Maternal Care, Risk, Women
Masho SW, Ihongbe TO, Wan W
Effectiveness of shortened time interval to postpartum visit in improving postpartum attendance: design and rationale for a randomized controlled trial.
Recent evidence suggests that there are numerous benefits to scheduling postpartum visits as early as 3 weeks post-delivery. However, findings are not conclusive due to methodological limitations. This report discussed the unique aspects of a randomized controlled trial's (RCT) design, intervention, and strategies to maintain participant retention. The study design offered unique features which ensured excellent participant completion and adherence rates, despite the presence of hard-to-track women who typically do not return for their postpartum visits.
AHRQ-funded; HS021504.
Citation: Masho SW, Ihongbe TO, Wan W .
Effectiveness of shortened time interval to postpartum visit in improving postpartum attendance: design and rationale for a randomized controlled trial.
Contemp Clin Trials 2019 Jun;81:40-43. doi: 10.1016/j.cct.2019.04.012..
Keywords: Maternal Care, Pregnancy, Women, Patient Adherence/Compliance, Research Methodologies
Hoffman SR, Vines AI, Halladay JR
Optimizing research in symptomatic uterine fibroids with development of a computable phenotype for use with electronic health records.
The objective of the study was to develop an electronic health record-based algorithm to identify women with symptomatic uterine fibroids for a comparative effectiveness study of medical or surgical treatments on quality-of-life measures. The study concluded that an electronic health record-based algorithm is capable of identifying cases of symptomatic uterine fibroids with moderate positive predictive value and may be an efficient approach for large-scale study recruitment.
AHRQ-funded; HS023418.
Citation: Hoffman SR, Vines AI, Halladay JR .
Optimizing research in symptomatic uterine fibroids with development of a computable phenotype for use with electronic health records.
Am J Obstet Gynecol 2018 Jun;218(6):610.e1-10.e7. doi: 10.1016/j.ajog.2018.02.002..
Keywords: Comparative Effectiveness, Electronic Health Records (EHRs), Research Methodologies, Women
Phillippi JC, Hartmann KE
Differentiating research, quality improvement, and case studies to ethically incorporate pregnant women.
This article discusses the need to involve pregnant women in research, quality improvement, and case studies and how to involve them in an ethical way with high standards to protect participants. This review includes vignettes to distinguish between the different types of studies and emphasizes that perinatal care providers will need to seek institutional review board approval for all research to be conducted.
AHRQ-funded; HS024733.
Citation: Phillippi JC, Hartmann KE .
Differentiating research, quality improvement, and case studies to ethically incorporate pregnant women.
J Midwifery Womens Health 2018 Jan;63(1):104-14. doi: 10.1111/jmwh.12673..
Keywords: Health Services Research (HSR), Healthcare Delivery, Maternal Care, Pregnancy, Quality of Care, Quality Improvement, Research Methodologies, Women
Harter G, Darden J, McMenemy N
Consent and enrollment process: achieving high enrollment rates for obstetric research.
The authors aimed to study the development, design, and implementation of a patient consent and enrollment initiative to identify strategies that enhanced participation. Over a three-year study period, there was an 85% enrollment rate the the five study sites. The researchers found that enrollment rates improved over time with increased nursing engagement in patient recruitment, site-specific adaptations, and patient education strategies.
AHRQ-funded; HS019608.
Citation: Harter G, Darden J, McMenemy N .
Consent and enrollment process: achieving high enrollment rates for obstetric research.
Appl Nurs Res 2016 Feb;29:101-6. doi: 10.1016/j.apnr.2015.05.011.
.
.
Keywords: Patient and Family Engagement, Research Methodologies, Women
Darney BG, Caughey AB
Elective induction of labor symposium: nomenclature, research methodological issues, and outcomes.
This article focuses on key method issues in studies of elective induction of labor. The authors first identify methodological concerns with the existing literature and discuss each in return. They then review existing evidence about the relationship between elective induction and cesarean delivery.
AHRQ-funded; HS017582
Citation: Darney BG, Caughey AB .
Elective induction of labor symposium: nomenclature, research methodological issues, and outcomes.
Clin Obstet Gynecol. 2014 Jun;57(2):343-62. doi: 10.1097/GRF.0000000000000029..
Keywords: Research Methodologies, Outcomes, Labor and Delivery, Women