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 (2)
- Ambulatory Care and Surgery (1)
- Cancer (1)
- Cardiovascular Conditions (1)
- Chronic Conditions (1)
- Elderly (1)
- Emergency Department (1)
- Eye Disease and Health (1)
- (-) Healthcare Cost and Utilization Project (HCUP) (14)
- Healthcare Costs (1)
- Heart Disease and Health (1)
- Hospitalization (1)
- (-) Hospital Readmissions (14)
- Hospitals (3)
- Human Immunodeficiency Virus (HIV) (1)
- Medicaid (1)
- Medicare (1)
- Mortality (2)
- Provider Performance (1)
- Quality Indicators (QIs) (1)
- Quality Measures (2)
- Quality of Care (1)
- Racial and Ethnic Minorities (2)
- Respiratory Conditions (2)
- Risk (3)
- Sex Factors (1)
- Social Determinants of Health (2)
- Surgery (5)
- Vulnerable Populations (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 14 of 14 Research Studies DisplayedGoto T, Faridi MK, Gibo K
Sex and racial/ethnic differences in the reason for 30-day readmission after COPD hospitalization.
This retrospective cohort study used 2006-2012 data from the State Inpatient Database of eight geographically-diverse US states (Arkansas, California, Florida, Iowa, Nebraska, New York, Utah, and Washington) to examine 30-day readmissions in patients hospitalized for chronic obstructive pulmonary disease (COPD). In their analysis of all-payer population-based data, the authors found sex and racial/ethnic differences in the reason for 30-day readmission in patients hospitalized for COPD.
AHRQ-funded; HS023305.
Citation: Goto T, Faridi MK, Gibo K .
Sex and racial/ethnic differences in the reason for 30-day readmission after COPD hospitalization.
Respir Med 2017 Oct;131:6-10. doi: 10.1016/j.rmed.2017.07.056..
Keywords: Respiratory Conditions, Healthcare Cost and Utilization Project (HCUP), Racial and Ethnic Minorities, Hospital Readmissions, Sex Factors
Goto T, Faridi MK, Gibo K
Trends in 30-day readmission rates after COPD hospitalization, 2006-2012.
This study investigated trends in 30-day readmission rates after chronic obstructive pulmonary disease (COPD)-related hospitalization. Overall, the 30-day readmission rate for COPD-related hospitalization decreased modestly from 20.0 percent in 2006 to 19.2 percent in 2012. Similar to the overall population, the readmission rate over the 7-year period remained persistently high in most of AHRQ-defined priority populations.
AHRQ-funded; HS023305.
Citation: Goto T, Faridi MK, Gibo K .
Trends in 30-day readmission rates after COPD hospitalization, 2006-2012.
Respir Med 2017 Sep;130:92-97. doi: 10.1016/j.rmed.2017.07.058.
.
.
Keywords: Respiratory Conditions, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Social Determinants of Health, Vulnerable Populations
Moore BJ, White S, Washington R
AHRQ Author: Elixhauser A
Identifying increased risk of readmission and in-hospital mortality using hospital administrative data: the AHRQ Elixhauser Comorbidity Index.
The researchers extended the literature on comorbidity measurement by developing 2 indices, based on the Elixhauser Comorbidity measures, designed to predict 2 frequently reported health outcomes: in-hospital mortality and 30-day readmission in administrative data. The index scores performed as well as using all 29 Elixhauser comorbidity variables separately.
AHRQ-authored; AHRQ-funded.
Citation: Moore BJ, White S, Washington R .
Identifying increased risk of readmission and in-hospital mortality using hospital administrative data: the AHRQ Elixhauser Comorbidity Index.
Med Care 2017 Jul;55(7):698-705. doi: 10.1097/mlr.0000000000000735.
.
.
Keywords: Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Mortality, Risk
Jacobs BL, He C, Li BY
Variation in readmission expenditures after high-risk surgery.
The researchers sought to investigate readmission intensity as measured by readmission cost for high-risk surgeries and examine predictors of higher readmission costs. They found that the 30-day readmission rate was 16 percent for major chest and 22 percent for major abdominal surgery. Discharge to a skilled nursing facility was associated with higher readmission costs for both chest and abdominal surgeries.
AHRQ-funded; HS024403; HS023621.
Citation: Jacobs BL, He C, Li BY .
Variation in readmission expenditures after high-risk surgery.
J Surg Res 2017 Jun 1;213:60-68. doi: 10.1016/j.jss.2017.02.017.
.
.
Keywords: Healthcare Cost and Utilization Project (HCUP), Surgery, Hospital Readmissions, Healthcare Costs, Risk
Graboyes EM, Kallogjeri D, Saeed MJ
Postoperative care fragmentation and thirty-day unplanned readmissions after head and neck cancer surgery.
Researchers sought to determine the frequency, risk factors, and outcomes for head and neck cancer patients experiencing postdischarge care fragmentation. They found that postdischarge care fragmentation following head and neck cancer surgery is common, as 37 percent of readmitted patients and 31 percent of patients readmitted with a treatment complication are readmitted to a hospital other than the surgical hospital.
AHRQ-funded; HS019455.
Citation: Graboyes EM, Kallogjeri D, Saeed MJ .
Postoperative care fragmentation and thirty-day unplanned readmissions after head and neck cancer surgery.
Laryngoscope 2017 Apr;127(4):868-74. doi: 10.1002/lary.26301.
.
.
Keywords: Healthcare Cost and Utilization Project (HCUP), Cancer, Surgery, Hospital Readmissions, Mortality
Graboyes EM, Kallogjeri D, Saeed MJ
30-day hospital readmission following otolaryngology surgery: analysis of a state inpatient database.
Researchers sought to determine patient and hospital-level risk factors associated with 30-day readmission for patients undergoing inpatient otolaryngologic surgery. Approximately one out of 12 patients undergoing otolaryngologic surgery had a 30-day readmission. Readmissions occur across a variety of types of procedures and hospitals. Most of the variability was driven by patient-specific factors, not structural hospital characteristics.
AHRQ-funded; HS019455.
Citation: Graboyes EM, Kallogjeri D, Saeed MJ .
30-day hospital readmission following otolaryngology surgery: analysis of a state inpatient database.
Laryngoscope 2017 Feb;127(2):337-45. doi: 10.1002/lary.25997.
.
.
Keywords: Adverse Events, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Risk, Surgery
Davis JD, Olsen MA, Bommarito K
All-payer analysis of heart failure hospitalization 30-day readmission: comorbidities matter.
In this study, the researchers investigated readmission characteristics and the magnitude of 30-day hospital readmissions after hospital discharge for heart failure using the Healthcare Cost and Utilization Project State Inpatient Databases (SID). They found in this large all-payer cohort, ∼70% of 30-day readmissions were for non-heart failure causes, and the median time to readmission was 12 days.
AHRQ-funded; HS019455.
Citation: Davis JD, Olsen MA, Bommarito K .
All-payer analysis of heart failure hospitalization 30-day readmission: comorbidities matter.
Am J Med 2017 Jan;130(1):93.e9-93.e28. doi: 10.1016/j.amjmed.2016.07.030..
Keywords: Cardiovascular Conditions, Heart Disease and Health, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Hospitalization, Hospitals, Provider Performance
Campione JR, Smith SA, Mardon RE
Hospital-level factors related to 30-day readmission rates.
This study investigates the relationship between inpatient quality of care as measured by the Agency for Healthcare Research and Quality (AHRQ) patient safety indicator (PSI) composite and all-cause, hospital-wide, 30-day readmission rates. It concluded that inpatient quality of care appears to have less influence on hospital readmission rates than do clinical and socioeconomic factors.
AHRQ-funded; 290201200003I.
Citation: Campione JR, Smith SA, Mardon RE .
Hospital-level factors related to 30-day readmission rates.
Am J Med Qual 2017 Jan/Feb;32(1):48-57. doi: 10.1177/1062860615612158.
.
.
Keywords: Quality of Care, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Quality Indicators (QIs), Quality Measures
Pershing S, Morrison DE, Hernandez-Boussard T
Cataract surgery complications and revisit rates among three states.
The authors studied cataract procedures from California, Florida, and New York, to characterize population-based 30-day procedure-related readmissions following surgery. Their results highlight the importance of age as a risk factor for cataract surgery readmissions, and suggest a relationship between black or Hispanic race, Medicaid insurance, and diabetes associated with higher risk for cataract surgery complications.
AHRQ-funded; HS018558.
Citation: Pershing S, Morrison DE, Hernandez-Boussard T .
Cataract surgery complications and revisit rates among three states.
Am J Ophthalmol 2016 Nov;171:130-38. doi: 10.1016/j.ajo.2016.08.036.
.
.
Keywords: Healthcare Cost and Utilization Project (HCUP), Eye Disease and Health, Surgery, Hospital Readmissions, Adverse Events
Thompson MP, Kaplan CM, Cao Y
Reliability of 30-day readmission measures used in the hospital readmission reduction program.
The researchers assessed the reliability of risk-standardized readmission rates (RSRRs) for medical conditions and surgical procedures used in the Hospital Readmission Reduction Program (HRRP). They found that approximately 25 percent of payments for excess readmissions were tied to unreliable RSRRs. Unreliable measures blur the connection between hospital performance and incentives, and threaten the success of the HRRP.
AHRQ-funded; HS023783.
Citation: Thompson MP, Kaplan CM, Cao Y .
Reliability of 30-day readmission measures used in the hospital readmission reduction program.
Health Serv Res 2016 Oct 21;51(6):2095-114. doi: 10.1111/1475-6773.12587.
.
.
Keywords: Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Hospitals, Elderly, Quality Measures
Martsolf GR, Barrett ML, Weiss AJ
AHRQ Author: Steiner CA, Coffey R
Impact of race/ethnicity and socioeconomic status on risk-adjusted hospital readmission rates following hip and knee arthroplasty.
This study examined the extent to which risk-adjusting for race/ethnicity and socioeconomic status affected hospital performance in terms of readmission rates following total hip arthroplasty (THA) and total knee arthroplasty (TKA). It found that inclusion of race/ethnicity and socioeconomic status in the risk-adjustment algorithm led to a relative-performance change in readmission rates following THA and TKA at less than 3 percent of the hospitals.
AHRQ-authored; AHRQ-funded; 290201300002C.
Citation: Martsolf GR, Barrett ML, Weiss AJ .
Impact of race/ethnicity and socioeconomic status on risk-adjusted hospital readmission rates following hip and knee arthroplasty.
J Bone Joint Surg Am 2016 Aug 17;98(16):1385-91. doi: 10.2106/jbjs.15.00884.
.
.
Keywords: Healthcare Cost and Utilization Project (HCUP), Racial and Ethnic Minorities, Social Determinants of Health, Hospital Readmissions, Surgery
Basu J, Avila R, Ricciardi R
AHRQ Author: Basu J, Ricciardi R
Hospital readmission rates in U.S. states: are readmissions higher where more patients with multiple chronic conditions cluster?
This study examines small area variations in readmission rates to assess whether higher readmission rate in an area is associated with higher clusters of patients with multiple chronic conditions. It found that areas with higher concentration of patients with increased comorbid conditions are more likely to have higher readmission rates.
AHRQ-authored.
Citation: Basu J, Avila R, Ricciardi R .
Hospital readmission rates in U.S. states: are readmissions higher where more patients with multiple chronic conditions cluster?
Health Serv Res 2016 Jun;51(3):1135-51. doi: 10.1111/1475-6773.12401..
Keywords: Chronic Conditions, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Hospitals
Friedman B, Barbash GI, Glied SA
AHRQ Author: Friedman B, Steiner CA
Hospital revisits within 30 days after conventional and robotically assisted hysterectomy.
This study compared the rates of hospital readmissions, emergency department, and outpatient clinic visits after discharge for robotically assisted (RA) versus nonrobotic hysterectomy in women age 30 or more with nonmalignant conditions. It found that using 2 different methods to control for selection, there were higher rates of revisits among women undergoing RA versus non-RA hysterectomy for benign conditions.
AHRQ-authored
Citation: Friedman B, Barbash GI, Glied SA .
Hospital revisits within 30 days after conventional and robotically assisted hysterectomy.
Med Care 2016 Mar;54(3):311-8. doi: 10.1097/mlr.0000000000000482..
Keywords: Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Emergency Department, Ambulatory Care and Surgery, Women
Berry SA, Fleishman JA, Moore RD
AHRQ Author: Fleishman JA
Thirty-day hospital readmissions for adults with and without HIV infection.
This study compared 30-day readmission rates by HIV status in a multi-state sample with planned subgroup comparisons by insurance and diagnostic categories. After adjustment for age, gender, race, insurance, and diagnostic category, HIV infection was associated with 1.5 times higher odds of readmission. Predicted, adjusted readmission rates were higher for persons living with HIV within every insurance category, including Medicaid.
AHRQ-authored.
Citation: Berry SA, Fleishman JA, Moore RD .
Thirty-day hospital readmissions for adults with and without HIV infection.
HIV Med 2016 Mar;17(3):167-77. doi: 10.1111/hiv.12287.
.
.
Keywords: Healthcare Cost and Utilization Project (HCUP), Human Immunodeficiency Virus (HIV), Hospital Readmissions, Medicaid, Medicare