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
- Access to Care (1)
- Adverse Drug Events (ADE) (1)
- Adverse Events (5)
- Antibiotics (1)
- Arthritis (2)
- Asthma (1)
- Behavioral Health (4)
- Cancer (2)
- Cardiovascular Conditions (7)
- Care Management (2)
- Children/Adolescents (11)
- Chronic Conditions (2)
- Clostridium difficile Infections (1)
- Consumer Assessment of Healthcare Providers and Systems (CAHPS) (1)
- Data (1)
- Depression (2)
- Dialysis (1)
- Disparities (2)
- Elderly (15)
- Electronic Health Records (EHRs) (3)
- Emergency Department (15)
- Evidence-Based Practice (4)
- Healthcare Cost and Utilization Project (HCUP) (16)
- Healthcare Costs (4)
- Healthcare Delivery (2)
- Healthcare Utilization (3)
- Health Information Exchange (HIE) (2)
- Health Information Technology (HIT) (2)
- Health Insurance (2)
- Health Literacy (1)
- Health Services Research (HSR) (1)
- Heart Disease and Health (8)
- Home Healthcare (1)
- Hospital Discharge (23)
- Hospitalization (18)
- (-) Hospital Readmissions (93)
- Hospitals (22)
- Human Immunodeficiency Virus (HIV) (1)
- Injuries and Wounds (5)
- Inpatient Care (2)
- Intensive Care Unit (ICU) (1)
- Kidney Disease and Health (4)
- Long-Term Care (1)
- Low-Income (1)
- Medicaid (3)
- Medicare (19)
- Medication (1)
- Mortality (8)
- Neurological Disorders (2)
- Newborns/Infants (1)
- Nursing Homes (2)
- Opioids (1)
- Orthopedics (2)
- Outcomes (16)
- Palliative Care (1)
- Patient-Centered Outcomes Research (7)
- Patient Experience (1)
- Patient Safety (6)
- Payment (2)
- Pneumonia (2)
- Policy (3)
- Prevention (2)
- Primary Care (1)
- Provider: Pharmacist (1)
- Provider Performance (4)
- Quality Improvement (3)
- Quality Indicators (QIs) (4)
- Quality Measures (1)
- Quality of Care (7)
- Racial and Ethnic Minorities (3)
- Registries (2)
- Rehabilitation (2)
- Respiratory Conditions (4)
- Risk (12)
- Rural Health (1)
- Sepsis (1)
- Sickle Cell Disease (1)
- Social Determinants of Health (1)
- Stroke (1)
- Substance Abuse (4)
- Surgery (19)
- Tobacco Use (1)
- Transitions of Care (2)
- Transplantation (3)
- Trauma (1)
- Young Adults (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
76 to 93 of 93 Research Studies DisplayedCarey K
Measuring the hospital length of stay/readmission cost trade-off under a bundled payment mechanism.
This paper investigates the relationship between length of stay and readmission within 30 days of discharge from an acute care hospitalization. It found that the cost of an additional day of stay was offset by expected cost savings from an avoided readmission in the range of 15 to 65 percent.
AHRQ-funded; HS020995.
Citation: Carey K .
Measuring the hospital length of stay/readmission cost trade-off under a bundled payment mechanism.
Health Econ 2015 Jul;24(7):790-802. doi: 10.1002/hec.3061..
Keywords: Hospital Readmissions, Hospitalization, Elderly, Hospital Discharge, Medicare
Gonzalez AA, Abdelsattar ZM, Dimick JB
Time-to-readmission and mortality after high-risk surgery.
This study used 5 years of data on Medicare beneficiaries undergoing high-risk surgical procedures to investigate whether postdischarge mortality varies by time to readmission. It found that surgical readmissions within 10 days of discharge are disproportionately common and associated with increased mortality independent of index complications.
AHRQ-funded; HS017765; HS000053.
Citation: Gonzalez AA, Abdelsattar ZM, Dimick JB .
Time-to-readmission and mortality after high-risk surgery.
Ann Surg 2015 Jul;262(1):53-9. doi: 10.1097/sla.0000000000000912..
Keywords: Patient Safety, Mortality, Hospital Readmissions, Adverse Events, Surgery
Duseja R, Bardach NS, Lin GA
Revisit rates and associated costs after an emergency department encounter: a multistate analysis.
This study describes revisit rates, variation in revisit rates by diagnosis and state, and associated costs. It found that revisits after an index ED encounter are more frequent than previously reported, in part because many occur outside the index institution. Among ED patients in Florida, more resources are spent on revisits than on index ED visits.
AHRQ-funded; HS020667.
Citation: Duseja R, Bardach NS, Lin GA .
Revisit rates and associated costs after an emergency department encounter: a multistate analysis.
Ann Intern Med 2015 Jun 2;162(11):750-6. doi: 10.7326/m14-1616..
Keywords: Healthcare Cost and Utilization Project (HCUP), Healthcare Costs, Emergency Department, Hospitalization, Hospital Readmissions
Lopes RD, Gharacholou SM, Holmes DN
Cumulative incidence of death and rehospitalization among the elderly in the first year after NSTEMI.
The researchers evaluated mortality and cause-specific rehospitalization rates in elderly non-ST-segment elevation myocardial infarction survivors with ischemic heart disease. They found that rehospitalization rates do not rise substantially with advancing age, and rehospitalization is often for noncardiac diagnoses.
AHRQ-funded; HS021092.
Citation: Lopes RD, Gharacholou SM, Holmes DN .
Cumulative incidence of death and rehospitalization among the elderly in the first year after NSTEMI.
Am J Med 2015 Jun;128(6):582-90. doi: 10.1016/j.amjmed.2014.12.032.
.
.
Keywords: Elderly, Mortality, Heart Disease and Health, Cardiovascular Conditions, Hospital Readmissions
Shih T, Ryan AM, Gonzalez AA
Medicare's hospital readmissions reduction program in surgery may disproportionately affect minority-serving hospitals.
The authors aimed to project readmission penalties for hospitals performing cardiac surgery and examine how these penalties will affect minority-serving hospitals. They found that minority-serving hospitals would disproportionately bear the burden of readmission penalties if expanded to include cardiac surgery.
AHRQ-funded; HS018546.
Citation: Shih T, Ryan AM, Gonzalez AA .
Medicare's hospital readmissions reduction program in surgery may disproportionately affect minority-serving hospitals.
Ann Surg 2015 Jun;261(6):1027-31. doi: 10.1097/sla.0000000000000778.
.
.
Keywords: Hospitals, Medicare, Racial and Ethnic Minorities, Hospital Readmissions, Surgery
Amarasingham R, Velasco F, Xie B
Electronic medical record-based multicondition models to predict the risk of 30 day readmission or death among adult medicine patients: validation and comparison to existing models.
The purpose of this study was to evaluate the degree to which electronic medical record-based risk models for 30-day readmission or mortality accurately identify high risk patients and to compare these models with published claims-based models. The researchers found that a new electronic multicondition model based on information derived from the electronic medical record predicted mortality and readmission at 30 days, and was superior to previously published claims-based models
AHRQ-funded; HS022418.
Citation: Amarasingham R, Velasco F, Xie B .
Electronic medical record-based multicondition models to predict the risk of 30 day readmission or death among adult medicine patients: validation and comparison to existing models.
BMC Med Inform Decis Mak 2015 May 20;15:39. doi: 10.1186/s12911-015-0162-6.
.
.
Keywords: Electronic Health Records (EHRs), Health Information Technology (HIT), Mortality, Hospital Readmissions, Risk
Field TS, Ogarek J, Garber L
Association of early post-discharge follow-up by a primary care physician and 30-day rehospitalization among older adults.
The researchers aimed to determine whether an office visit with a primary care physician within 7 days after discharge is associated with 30-day rehospitalization. Of 3,661 patients discharged to home during the study year, 1,808 received an office visit within 7 days and of these, 1,000 were with a primary care physician. No protective effect for office visits within 7 days was found.
AHRQ-funded; HS017203.
Citation: Field TS, Ogarek J, Garber L .
Association of early post-discharge follow-up by a primary care physician and 30-day rehospitalization among older adults.
J Gen Intern Med 2015 May;30(5):565-71. doi: 10.1007/s11606-014-3106-4..
Keywords: Hospital Readmissions, Primary Care, Hospital Discharge, Elderly, Healthcare Costs
Sjoding MW, Iwashyna TJ, Dimick JB
Gaming hospital-level pneumonia 30-day mortality and readmission measures by legitimate changes to diagnostic coding.
The researchers sought to determine the degree to which hospitals can game mortality or readmission measures and change their rankings by recoding patients with pneumonia. They concluded that hospitals can improve apparent pneumonia mortality and readmission rates by recoding pneumonia patients. Centers for Medicare and Medicaid Services should consider changes to their methods used to calculate hospital-level pneumonia outcome measures.
AHRQ-funded; HS020672.
Citation: Sjoding MW, Iwashyna TJ, Dimick JB .
Gaming hospital-level pneumonia 30-day mortality and readmission measures by legitimate changes to diagnostic coding.
Crit Care Med 2015 May;43(5):989-95. doi: 10.1097/ccm.0000000000000862..
Keywords: Elderly, Hospital Readmissions, Medicare, Mortality, Pneumonia, Quality Indicators (QIs)
Singh JA, Inacio MC, Namba RS
Rheumatoid arthritis is associated with higher ninety-day hospital readmission rates compared to osteoarthritis after hip or knee arthroplasty: a cohort study.
This study examined whether an underlying diagnosis of rheumatoid arthritis (RA) or osteoarthritis (OA) impacts the 90-day readmission rates after total hip arthroplasty (THA) or total knee arthroplasty (TKA). The 90-day post arthroplasty readmission risk after THA or TKA is higher in patients with rheumatoid arthritis (RA) compared to osteoarthritis.
AHRQ-funded; HS021110.
Citation: Singh JA, Inacio MC, Namba RS .
Rheumatoid arthritis is associated with higher ninety-day hospital readmission rates compared to osteoarthritis after hip or knee arthroplasty: a cohort study.
Arthritis Care Res 2015 May;67(5):718-24. doi: 10.1002/acr.22497..
Keywords: Arthritis, Hospital Readmissions, Arthritis, Surgery
Holdsworth La E, Zhu R, Hassmiller Lich K
The effects of state psychiatric hospital waitlist policies on length of stay and time to readmission.
This study examined the effects of a waitlist policy for state psychiatric hospitals on length of stay and time to readmission. The authors found that waitlists were associated with increased length of stay and time to readmission.
AHRQ-funded; HS000032.
Citation: Holdsworth La E, Zhu R, Hassmiller Lich K .
The effects of state psychiatric hospital waitlist policies on length of stay and time to readmission.
Adm Policy Ment Health 2015 May;42(3):332-42. doi: 10.1007/s10488-014-0573-1.
.
.
Keywords: Hospitals, Behavioral Health, Policy, Substance Abuse, Hospital Readmissions
Shah T, Churpek MM, Coca Perraillon M
Understanding why patients with COPD get readmitted: a large national study to delineate the Medicare population for the readmissions penalty expansion.
The Hospital Readmissions Reduction Program (HRRP) penalizes hospitals for 30-day readmissions and was extended to COPD in October 2014. The authors investigated readmission risk factors and reasons for readmission in order to guide hospitals in initiating programs to reduce COPD readmissions. They found that patients discharged home without home care were more likely to be readmitted for COPD than patients discharged to post-acute care, and those readmitted were more likely to be dually enrolled in Medicare and Medicaid, have a longer median length of stay, and have more comorbidities. They concluded that the addition of COPD to the readmissions penalty may further worsen the disproportionately high penalties seen in safety net hospitals.
AHRQ-funded; HS021877.
Citation: Shah T, Churpek MM, Coca Perraillon M .
Understanding why patients with COPD get readmitted: a large national study to delineate the Medicare population for the readmissions penalty expansion.
Chest 2015 May;147(5):1219-26. doi: 10.1378/chest.14-2181.
.
.
Keywords: Respiratory Conditions, Elderly, Medicare, Hospital Readmissions
Hinami K, Smith J, Deamant CD
When do patient-reported outcome measures inform readmission risk?
The study sought was to characterize changes in patient-reported outcome measures from hospital discharge to assess when they best inform risk of utilization as defined by readmissions or emergency department use. It concluded that routine measurement of patient-reported outcomes can help identify patients at higher risk for utilizations. For example, in-hospital assessments revealing high symptom burden and poor health status predicted 14-day reutilization.
AHRQ-funded; HS019481.
Citation: Hinami K, Smith J, Deamant CD .
When do patient-reported outcome measures inform readmission risk?
J Hosp Med 2015 May;10(5):294-300. doi: 10.1002/jhm.2366..
Keywords: Emergency Department, Healthcare Utilization, Hospital Discharge, Hospital Readmissions, Outcomes
Ayers DC, Fehring TK, Odum SM
Using joint registry data from FORCE-TJR to improve the accuracy of risk-adjustment prediction models for thirty-day readmission after total hip replacement and total knee replacement.
The authors argue that registry data offer the opportunity to combine clinical information currently available in registries (such as the Function and Outcomes Research for Comparative Effectiveness in Total Joint Replacement [FORCE-TJR] registry based at the University of Massachusetts Medical School) with the administrative data currently used by CMS. Doing so will improve the risk adjustment for patients having total joint replacement by making the data more accurate and more fair for hospitals and surgeons.
AHRQ-funded; HS018910.
Citation: Ayers DC, Fehring TK, Odum SM .
Using joint registry data from FORCE-TJR to improve the accuracy of risk-adjustment prediction models for thirty-day readmission after total hip replacement and total knee replacement.
J Bone Joint Surg Am 2015 Apr 15;97(8):668-71. doi: 10.2106/jbjs.n.00889..
Keywords: Registries, Surgery, Hospital Readmissions, Risk
Brown SE, Ratcliffe SJ, Halpern SD
Assessing the utility of ICU readmissions as a quality metric: an analysis of changes mediated by residency work-hour reforms.
This study sought to determine whether ICU readmission rates changed after the 2003 Accreditation Council for Graduate Medical Education Resident Duty Hours reform and whether there were temporally corresponding changes in other ICU outcomes. The decrease in ICU readmission rates after reform, without corresponding changes in mortality, suggest that ICU readmissions are not causally related to other untoward patient outcomes.
AHRQ-funded; HS018406.
Citation: Brown SE, Ratcliffe SJ, Halpern SD .
Assessing the utility of ICU readmissions as a quality metric: an analysis of changes mediated by residency work-hour reforms.
Chest 2015 Mar;147(3):626-36. doi: 10.1378/chest.14-1060..
Keywords: Intensive Care Unit (ICU), Hospital Readmissions, Quality of Care, Patient Safety, Outcomes
Merkow RP, Ju MH, Chung JW
Underlying reasons associated with hospital readmission following surgery in the United States.
The objectives of this study were to characterize the reasons for and timing of readmissions and to examine factors associated with unplanned surgical readmissions. It found that readmissions after surgery were mostly associated with postdischarge complications related to the procedure and not with exacerbation of prior index admission complications.
AHRQ-funded; HS21857.
Citation: Merkow RP, Ju MH, Chung JW .
Underlying reasons associated with hospital readmission following surgery in the United States.
JAMA 2015 Feb 3;313(5):483-95. doi: 10.1001/jama.2014.18614..
Keywords: Surgery, Hospital Readmissions, Injuries and Wounds
Smith MW, Stocks C, Santora PB
AHRQ Author: Stocks C
Hospital readmission rates and emergency department visits for mental health and substance abuse conditions.
The purpose of this study is to examine data on the readmission rates and ED visits of individuals diagnosed with mental health and substance abuse (MHSA) conditions to determine which individuals with specific MHSA conditions are more likely to return to the ED or be readmitted. It found that alcohol or drug dependence, dementias, psychotic disorders, autism, impulse control disorders, and personality disorders were most strongly associated with future inpatient admission or ED revisit.
AHRQ-authored; AHRQ-funded; 290200600009C.
Citation: Smith MW, Stocks C, Santora PB .
Hospital readmission rates and emergency department visits for mental health and substance abuse conditions.
Community Ment Health J 2015 Feb;51(2):190-7. doi: 10.1007/s10597-014-9784-x..
Keywords: Emergency Department, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Behavioral Health, Substance Abuse
Shy BD, Shapiro JS, Shearer PL
A conceptual framework for improved analyses of 72-hour return cases.
The researchers describe the potential importance and limitations of reviewing cases where patients return to emergency departments (EDs) within 72-hours of discharge. They outline a novel framework for carrying out this practice. Within this framework, they describe the selection, training, and monitoring of QA reviewers, the attention reviewers should give to returning ED patients who are subsequently admitted, as well as several other topics.
AHRQ-funded; HS021261.
Citation: Shy BD, Shapiro JS, Shearer PL .
A conceptual framework for improved analyses of 72-hour return cases.
Am J Emerg Med 2015 Jan;33(1):104-7. doi: 10.1016/j.ajem.2014.08.005..
Keywords: Emergency Department, Hospital Discharge, Hospital Readmissions
Gabayan GZ, Sarkisian CA, Liang LJ
Predictors of admission after emergency department discharge in older adults.
The objective of this study was to identify the incidence and predictors of admissions to nonfederal California hospitals within 7 days of ED discharge of older Medicare beneficiaries. It found that five percent of older Medicare beneficiaries have a hospital inpatient admission after discharge from the ED, with chronic disease such as renal disease and heart failure being associated with the greatest odds of admission.
AHRQ-funded; HS18098.
Citation: Gabayan GZ, Sarkisian CA, Liang LJ .
Predictors of admission after emergency department discharge in older adults.
J Am Geriatr Soc 2015 Jan;63(1):39-45. doi: 10.1111/jgs.13185..
Keywords: Elderly, Emergency Department, Hospital Discharge, Hospital Readmissions, Medicare