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
AHRQ Research Studies Date
Topics
- Adverse Events (1)
- Alcohol Use (1)
- Antibiotics (1)
- Arthritis (1)
- Cancer (2)
- Cardiovascular Conditions (3)
- Comparative Effectiveness (1)
- Critical Care (1)
- Dialysis (1)
- Elderly (1)
- (-) Evidence-Based Practice (9)
- Heart Disease and Health (2)
- Hospitalization (1)
- Hospitals (1)
- Kidney Disease and Health (1)
- Labor and Delivery (1)
- Medical Devices (1)
- Medicare (1)
- Medication (3)
- (-) Mortality (9)
- Newborns/Infants (1)
- Opioids (1)
- Orthopedics (1)
- Outcomes (8)
- Patient-Centered Outcomes Research (6)
- Pregnancy (1)
- Rehabilitation (1)
- Research Methodologies (1)
- Risk (2)
- Sepsis (1)
- Surgery (4)
- Transitions of Care (1)
- Transplantation (1)
- Treatments (1)
- Women (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 9 of 9 Research Studies DisplayedGoldstone AB, Chiu P, Baiocchi M
Interfacility transfer of Medicare beneficiaries with acute type a aortic dissection and regionalization of care in the United States.
Researchers investigated the hypothesis that regionalizing care at high-volume hospitals for acute type A aortic dissections will lower mortality. Operative mortality and long-term survival were compared for Medicare beneficiaries diagnosed with an acute type A aortic dissection who were transferred versus not transferred, underwent surgery at high-volume versus low-volume hospitals, and were rerouted versus not rerouted to a high-volume hospital for treatment. The researchers found that, despite delaying surgery, a regionalization policy that transfers patients to high-volume hospitals was associated with a 7.2% absolute risk reduction in operative mortality. They recommended that policymakers evaluate the feasibility and benefits of regionalizing the surgical treatment of acute type A aortic dissection in the United States.
AHRQ-funded; HS022192.
Citation: Goldstone AB, Chiu P, Baiocchi M .
Interfacility transfer of Medicare beneficiaries with acute type a aortic dissection and regionalization of care in the United States.
Circulation 2019 Oct 8;140(15):1239-50. doi: 10.1161/circulationaha.118.038867..
Keywords: Transitions of Care, Medicare, Heart Disease and Health, Cardiovascular Conditions, Patient-Centered Outcomes Research, Risk, Evidence-Based Practice, Mortality, Hospitals
Kim SC, Jin Y, Lee YC
Association of preoperative opioid use with mortality and short-term safety outcomes after total knee replacement.
The purpose of this study was to determine the association of preoperative opioid use among patients 65 years and older with mortality and other complications at 30 days post-total knee replacement (TKR). Findings show that continuous opioid users had a higher risk of revision operations, vertebral fractures, and opioid overdose at 30 days post-TKR but not of in-hospital or 30-day mortality, compared with opioid-naive patients. Highlights include the need for better understanding of patient characteristics associated with chronic opioid use to optimize preoperative assessment of overall risk after TKR.
AHRQ-funded; HS018910.
Citation: Kim SC, Jin Y, Lee YC .
Association of preoperative opioid use with mortality and short-term safety outcomes after total knee replacement.
JAMA Netw Open 2019 Jul 3;2(7):e198061. doi: 10.1001/jamanetworkopen.2019.8061..
Keywords: Opioids, Medication, Surgery, Orthopedics, Elderly, Patient-Centered Outcomes Research, Mortality, Outcomes, Arthritis, Evidence-Based Practice
Istl AC, Ruck JM, Morris CD
Call for improved design and reporting in soft tissue sarcoma studies: a systematic review and meta-analysis of chemotherapy and survival outcomes in resectable STS.
Researchers completed a meta-analysis of chemotherapy in localized STS, assessing OS, PFS, and local and distant recurrence. They found no benefit of chemotherapy over locoregional therapy alone for all-comers or site-specific STS. Recommendations to improve outcome reporting and quality indices are suggested.
AHRQ-funded; HS024736.
Citation: Istl AC, Ruck JM, Morris CD .
Call for improved design and reporting in soft tissue sarcoma studies: a systematic review and meta-analysis of chemotherapy and survival outcomes in resectable STS.
J Surg Oncol 2019 Jun;119(7):824-35. doi: 10.1002/jso.25401..
Keywords: Cancer, Treatments, Evidence-Based Practice, Mortality, Outcomes, Research Methodologies
Pepper DJ, Sun J, Rhee C
Procalcitonin-guided antibiotic discontinuation and mortality in critically ill adults: a systematic review and meta-analysis.
This study is a systematic review and meta-analysis on survival outcomes of using procalcitonin (PCT)-guided antibiotic discontinuation on critically ill adults. The study quality was assessing with the Cochrane risk of bias tool, and GRADEpro was used to grade evidence. PCT-guided discontinuation was associated with decreased mortality, but there was a high risk of bias in many of the studies reviewed with a low certainty of evidence. The authors suggest properly designed studies with mortality as the primary outcome is needed to further answer this question.
AHRQ-funded; HS025008.
Citation: Pepper DJ, Sun J, Rhee C .
Procalcitonin-guided antibiotic discontinuation and mortality in critically ill adults: a systematic review and meta-analysis.
Chest 2019 Jun;155(6):1109-18. doi: 10.1016/j.chest.2018.12.029..
Keywords: Antibiotics, Critical Care, Evidence-Based Practice, Medication, Mortality, Outcomes, Sepsis
Shen NT, Londono C, Gold S
Systematic review with meta-analysis on transplantation for alcohol-related liver disease: very low evidence of improved outcomes.
Under the hypothesis that, while liver transplantation for patients with alcohol-related liver disease (ALD) may improve mortality and relapse, findings will be limited by pre-specified causes of heterogeneity, researchers conducted a systematic review. Data from 10 studies comparing use of liver transplant in ALD to no-transplant was analyzed. Primary outcome of both was short- and long-term mortality and relapse. The results of the review indicate that liver transplantation for ALD patients suggests reduced mortality and relapse in heterogeneous, institution-specific populations. The authors note that, to understand efficacy of transplanting ALD, their research approach must change.
AHRQ-funded; HS000066.
Citation: Shen NT, Londono C, Gold S .
Systematic review with meta-analysis on transplantation for alcohol-related liver disease: very low evidence of improved outcomes.
World J Gastroenterol 2019 Apr 7;25(13):1628-39. doi: 10.3748/wjg.v25.i13.1628..
Keywords: Alcohol Use, Evidence-Based Practice, Mortality, Outcomes, Patient-Centered Outcomes Research, Surgery, Transplantation
Yuo TH, Wallace JR, Fish L
Editor's choice - comparison of outcomes after open surgical and endovascular lower extremity revascularisation among end stage renal disease patients on dialysis.
This study compared outcomes of different revascularization surgeries among end stage renal disease (ESRD) patients with peripheral arterial disease (PAD). There is a high risk of complications for this surgery. Outcomes of endovascular revascularization (ER) and open surgical revascularisation (OSR) were compared. Outcomes measured included mortality and major amputation. There is a lower mortality risk for ER versus OSR. OSR has better 30-day limb salvage although there are similar long-term outcomes.
AHRQ-funded; HS019486.
Citation: Yuo TH, Wallace JR, Fish L .
Editor's choice - comparison of outcomes after open surgical and endovascular lower extremity revascularisation among end stage renal disease patients on dialysis.
Eur J Vasc Endovasc Surg 2019 Feb;57(2):248-57. doi: 10.1016/j.ejvs.2018.09.008..
Keywords: Adverse Events, Cardiovascular Conditions, Comparative Effectiveness, Dialysis, Evidence-Based Practice, Kidney Disease and Health, Mortality, Outcomes, Patient-Centered Outcomes Research, Risk, Surgery
Beg MS, Gupta A, Sher D
Impact of concurrent medication use on pancreatic cancer survival-SEER-Medicare analysis.
Researchers examined the association of several medication classes on pancreatic cancer survival, using data from the Surveillance, Epidemiology, and End Results-Medicare database. They found that the use of beta-blockers, heparin, insulin, and warfarin were associated with improved survival in patients with pancreatic cancer, whereas metformin, thiazolidinedione, statin, and combination therapies were not. The authors recommended additional studies to validate these findings in the clinical setting.
AHRQ-funded; HS022418.
Citation: Beg MS, Gupta A, Sher D .
Impact of concurrent medication use on pancreatic cancer survival-SEER-Medicare analysis.
Impact of concurrent medication use on pancreatic cancer survival-SEER-Medicare analysis..
Keywords: Cancer, Medication, Mortality, Outcomes, Patient-Centered Outcomes Research, Evidence-Based Practice
Bachmann JM, Duncan MS, Shah AS
Association of cardiac rehabilitation with decreased hospitalizations and mortality after ventricular assist device implantation.
This study examined whether outcomes of cardiac patients who had received ventricular assist device (VAD) implementation had decreased hospitalization and mortality with cardiac rehabilitation (CR). Medicare beneficiaries enrolled for disability or aged 65 years and older in 2014 were included. The investigators identified VAD recipients by diagnosis codes. It was found that each 5-year increase in age was associated with attending an additional 1.6 CR sessions and there was a 23% lower 1-year hospitalization risk and a 47% lower 1-year mortality risk.
AHRQ-funded; HS022990.
Citation: Bachmann JM, Duncan MS, Shah AS .
Association of cardiac rehabilitation with decreased hospitalizations and mortality after ventricular assist device implantation.
JACC Heart Fail 2018 Feb;6(2):130-39. doi: 10.1016/j.jchf.2017.11.002..
Keywords: Cardiovascular Conditions, Rehabilitation, Heart Disease and Health, Medical Devices, Surgery, Patient-Centered Outcomes Research, Outcomes, Mortality, Evidence-Based Practice, Hospitalization
Phillippi JC, Danhausen K, Alliman J
Neonatal outcomes in the birth center setting: a systematic review.
This systematic review examined the effects of the birth center setting on neonatal mortality in economically developed countries. The criteria for inclusion included being in English, published after 1980 and in countries with similar guidelines to the American Association of Birth Centers Standards. The only measure used was neonatal mortality and results did not find any difference between using a birth center as opposed to a traditional hospital setting. The literature was not found to have many good quality studies, and further research is recommended.
AHRQ-funded; HS024733.
Citation: Phillippi JC, Danhausen K, Alliman J .
Neonatal outcomes in the birth center setting: a systematic review.
J Midwifery Womens Health 2018 Jan;63(1):68-89. doi: 10.1111/jmwh.12701..
Keywords: Evidence-Based Practice, Labor and Delivery, Mortality, Newborns/Infants, Outcomes, Pregnancy, Women