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
- Alcohol Use (1)
- Ambulatory Care and Surgery (2)
- Behavioral Health (2)
- Cancer (1)
- Cancer: Lung Cancer (1)
- Cardiovascular Conditions (1)
- Children/Adolescents (1)
- Chronic Conditions (1)
- Depression (2)
- Diagnostic Safety and Quality (1)
- Digestive Disease and Health (2)
- Elderly (8)
- Electronic Health Records (EHRs) (1)
- (-) Emergency Department (34)
- Healthcare Cost and Utilization Project (HCUP) (5)
- Healthcare Costs (1)
- Healthcare Utilization (1)
- Health Information Exchange (HIE) (2)
- Health Information Technology (HIT) (1)
- Health Insurance (1)
- Heart Disease and Health (1)
- Hospital Discharge (15)
- Hospitalization (5)
- (-) Hospital Readmissions (34)
- Hospitals (3)
- Imaging (1)
- Lifestyle Changes (1)
- Medicare (5)
- Nursing (1)
- Nursing Homes (1)
- Outcomes (5)
- Pain (1)
- Patient-Centered Outcomes Research (2)
- Patient Safety (1)
- Practice Patterns (1)
- Quality Improvement (1)
- Quality of Care (1)
- Risk (4)
- Rural Health (1)
- Social Determinants of Health (1)
- Substance Abuse (1)
- Surgery (4)
- Transplantation (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 25 of 34 Research Studies DisplayedBrajcich BC, Johnson JK, Holl JL
Evaluation of emergency department treat-and-release encounters after major gastrointestinal surgery.
The purpose of this study was to assess the incidence of, reasons for, and predictors of emergency department treat-and-release encounters after gastrointestinal cancer operations. The researchers identified patients who underwent elective colorectal, esophageal, gastric, hepatobiliary, pancreatic, or small intestinal operations for cancer from the 2015-2017 Healthcare Cost and Utilization Project State Inpatient and State Emergency Department Databases for New York, Maryland, and Florida. The study found that among 51,527 patients at 406 hospitals, 7.9% had an ED treat-and-release encounter, and 10.8% had an ED encounter with readmission. In total, 40.7% of ED encounters were treat-and-release encounters. 12% of ED treat-and-release encounters were for pain, 11.7% for device/ostomy complaints, and 11.4% were for wound complaints (11.4%). ED treat-and-release encounters predictors included non-Hispanic Black race/ethnicity and Medicare or Medicaid coverage.
AHRQ-funded; HS026385.
Citation: Brajcich BC, Johnson JK, Holl JL .
Evaluation of emergency department treat-and-release encounters after major gastrointestinal surgery.
J Surg Oncol 2023 Aug; 128(2):402-08. doi: 10.1002/jso.27292..
Keywords: Emergency Department, Digestive Disease and Health, Surgery, Hospital Readmissions
Ray EM, Hinton SP, Reeder-Hayes KE
Risk factors for return to the emergency department and readmission in patients with hospital-diagnosed advanced lung cancer.
The objectives of this study were to examine the patterns of care and risk factors for subsequent acute care utilization among patients with hospital-diagnosed advanced lung cancer (ALC). Researchers identified patients with incident ALC from 2007-13 and an index hospitalization within 7 days of diagnosis in Surveillance, Epidemiology, and End Results-Medicare. Results showed that more than half of the incident ALC patients were hospitalized around the time of diagnosis; among those who survived to discharge, only 37% received systemic cancer treatment. Many patients experienced an early readmittance and most died within 6 months. The researchers conclude that such patients may benefit from increased access to palliative and other supportive care during hospitalization to prevent subsequent health care utilization.
AHRQ-funded; HS000032.
Citation: Ray EM, Hinton SP, Reeder-Hayes KE .
Risk factors for return to the emergency department and readmission in patients with hospital-diagnosed advanced lung cancer.
Med Care 2023 Apr;61(4):237-46. doi: 10.1097/mlr.0000000000001829.
Keywords: Emergency Department, Hospital Readmissions, Cancer: Lung Cancer, Cancer, Risk
Odeh Couvertier V, Patterson Patterson, Zayas-Cabán G
Association between advanced image ordered in the emergency department on subsequent imaging for abdominal pain patients.
The purpose of this retrospective, observational study was to evaluate abdominal pain patients discharged from the ED to determine the association between advanced emergency department (ED) imaging on subsequent outpatient imaging and on revisits. The researchers utilized the electronic health records of Medicare patients who presented with a complaint of abdominal pain at a United States academic emergency department. The study found that participants who were not imaged at the ED had significantly higher adjusted odds of being imaged outside of the ED within 7, 14, and 28 days of being discharged, and had a significantly higher adjusted odds of returning to the study ED and visiting any ED within 30 days of being discharged. The study concluded that receiving abdominal imaging services in the ED was related with significantly lower imaging use after discharge.
AHRQ-funded; HS024558.
Citation: Odeh Couvertier V, Patterson Patterson, Zayas-Cabán G .
Association between advanced image ordered in the emergency department on subsequent imaging for abdominal pain patients.
Acad Emerg Med 2022 Sep;29(9):1078-83. doi: 10.1111/acem.14541..
Keywords: Imaging, Emergency Department, Diagnostic Safety and Quality, Hospital Readmissions
Stevens JP, Hatfield LA, Nyweide DJ
Comparison of health outcomes among patients admitted on busy vs less busy days for hospitalists.
Increasingly, hospitalized patients are cared for by hospitalists. When caseloads are higher or patients require more acute care than usual, hospitalists may respond to their cognitive and time constraints by shifting diagnostic or procedural work to specialist colleagues, thereby delaying discharges or missing preventable safety events. This cohort study used Medicare claims data to analyze health outcomes of Medicare patients admitted to the hospital and being treated by hospitalists on busy vs less busy days.
AHRQ-funded; HS024288.
Citation: Stevens JP, Hatfield LA, Nyweide DJ .
Comparison of health outcomes among patients admitted on busy vs less busy days for hospitalists.
JAMA Netw Open 2022 Jan;5(1):e2144261. doi: 10.1001/jamanetworkopen.2021.44261..
Keywords: Outcomes, Emergency Department, Practice Patterns, Hospital Readmissions
Lumpkin ST, Mihas P, Baldwin X
Surgical patient values frame and modify the impact of risk factors for non-routine postdischarge care: a mixed-methods study.
This mixed methods study looked at patient perspectives on risk factors of non-routine postdischarge care (emergency department visit or rehospitalization) for adult colorectal surgery patients. Surgery patients were identified from hospital records from 2017 to 2018. The authors enrolled 258 participants, surveyed 167, and interviewed 18. Depressive symptoms were found to be one of the many risk factors confirmed to increase non-routine health utilization.
AHRQ-funded; HS026363.
Citation: Lumpkin ST, Mihas P, Baldwin X .
Surgical patient values frame and modify the impact of risk factors for non-routine postdischarge care: a mixed-methods study.
Am J Surg 2021 Jan;221(1):195-203. doi: 10.1016/j.amjsurg.2020.05.016..
Keywords: Digestive Disease and Health, Surgery, Risk, Hospital Readmissions, Emergency Department
Hsuan C, Carr BG, Hsia RY
Assessment of hospital readmissions from the emergency department after implementation of Medicare's hospital readmissions reduction program.
The purpose of this study was to examine whether the Medicare Hospital Readmissions Reduction Program (HRRP) was associated with changes in the probability of readmission at emergency department (ED) visits after hospital discharge (ED revisits) overall and depending on whether admission is typically indicated for the patient's condition at the ED revisit. Using hospital and ED discharge data from California, Florida, and New York, findings suggested that implementation of the HRRP was associated with a lower likelihood of readmission for recently discharged patients presenting to the ED, specifically for congestive heart failure. These findings highlighted the critical role of the ED in readmission reduction under the HRRP and suggested that patient outcomes after HRRP implementation merit further study.
AHRQ-funded; HS025838.
Citation: Hsuan C, Carr BG, Hsia RY .
Assessment of hospital readmissions from the emergency department after implementation of Medicare's hospital readmissions reduction program.
JAMA Netw Open 2020 May;3(5):e203857. doi: 10.1001/jamanetworkopen.2020.3857..
Keywords: Healthcare Cost and Utilization Project (HCUP), Emergency Department, Hospital Readmissions, Hospital Discharge, Hospitals, Medicare
Chen J, Sadasivam R, Blok AC
The association between patient-reported clinical factors and 30-day acute care utilization in chronic heart failure.
The purpose of this study was to identify post-discharge patient-reported clinical factors associated with repeat acute care use. Through phone surveys with patients with chronic heart failure, findings indicated that patient-reported poor health status, pain, and poor appetite were positively associated with 30-day acute care utilization. Recommendations included further study before incorporation into risk prediction to drive quality improvement efforts.
AHRQ-funded; HS017786.
Citation: Chen J, Sadasivam R, Blok AC .
The association between patient-reported clinical factors and 30-day acute care utilization in chronic heart failure.
Med Care 2020 Apr;58(4):336-43. doi: 10.1097/mlr.0000000000001258..
Keywords: Heart Disease and Health, Cardiovascular Conditions, Hospital Readmissions, Emergency Department, Chronic Conditions
Paredes AZ, Malik AT, Cluse M
Discharge disposition to skilled nursing facility after emergent general surgery predicts a poor prognosis.
Emergency general surgery can have a profound impact on the functional status of even previously independent patients. In this study, the investigators examined the role and influence of discharging a patient to a skilled nursing facility. They concluded that after accounting for patient severity and perioperative course, discharge to a skilled nursing facility was an independent risk factor for death, readmission, and postdischarge complications.
AHRQ-funded; HS022694.
Citation: Paredes AZ, Malik AT, Cluse M .
Discharge disposition to skilled nursing facility after emergent general surgery predicts a poor prognosis.
Surgery 2019 Oct;166(4):489-95. doi: 10.1016/j.surg.2019.04.034..
Keywords: Nursing Homes, Hospital Discharge, Elderly, Ambulatory Care and Surgery, Emergency Department, Outcomes, Hospital Readmissions, Outcomes, Risk
Kimmel HJ, Brice YN, Trikalinos TA
Real-time emergency department electronic notifications regarding high-risk patients: a systematic review.
In this study, the authors systematically reviewed evidence on the feasibility and efficacy of real-time electronic notifications about patients at high risk of emergency department (ED) recidivism. They concluded that real-time electronic notifications of ED providers regarding patients at high risk of ED recidivism are feasible and may help reduce resource utilization and costs. The authors indicate that large knowledge gaps remain regarding patient- and provider-centered outcomes.
AHRQ-funded; HS022998.
Citation: Kimmel HJ, Brice YN, Trikalinos TA .
Real-time emergency department electronic notifications regarding high-risk patients: a systematic review.
Telemed J E Health 2019 Jul;25(7):604-18. doi: 10.1089/tmj.2018.0117..
Keywords: Emergency Department, Electronic Health Records (EHRs), Health Information Technology (HIT), Hospital Readmissions
Shaffer R, Backhus L, Finnegan MA
Thirty-day unplanned postoperative inpatient and emergency department visits following thoracotomy.
This study examined thirty-day unplanned postoperative inpatient and emergency department visits following thoracotomy. The study concluded that following thoracotomy, postoperative emergency department visits and inpatient readmissions are common. Patients with public insurance were at high risk for readmission, while patients with underlying lung cancer diagnosis had a lower readmission risk. Emphasizing postoperative management in at-risk populations could improve health outcomes and reduce unplanned returns to care.
AHRQ-funded; HS024096.
Citation: Shaffer R, Backhus L, Finnegan MA .
Thirty-day unplanned postoperative inpatient and emergency department visits following thoracotomy.
J Surg Res 2018 Oct;230:117-24. doi: 10.1016/j.jss.2018.04.065..
Keywords: Emergency Department, Hospital Readmissions, Outcomes, Patient Safety, Surgery
Shy BD, Loo GT, Lowry T
Bouncing back elsewhere: multilevel analysis of return visits to the same or a different hospital after initial emergency department presentation.
In this study, the investigators use a health information exchange network to describe differences between emergency department (ED) visits resulting in 72-hour revisits to the same hospital and those resulting in revisits to a different site. Their analysis describes how ED encounters with early revisits to the same hospital differ from those with revisits to a second hospital.
AHRQ-funded; HS021261.
Citation: Shy BD, Loo GT, Lowry T .
Bouncing back elsewhere: multilevel analysis of return visits to the same or a different hospital after initial emergency department presentation.
Ann Emerg Med 2018 May;71(5):555-63.e1. doi: 10.1016/j.annemergmed.2017.08.023..
Keywords: Emergency Department, Health Information Exchange (HIE), Hospital Readmissions, Quality Improvement
Nuckols TK, Fingar KR, Barrett ML
AHRQ Author: Steiner CA, Stocks C, Owens PL
Returns to emergency department, observation, or inpatient care within 30 days after hospitalization in 4 states, 2009 and 2010 versus 2013 and 2014.
This study described trends in rates of 30-day, all-cause, unplanned returns to the hospital, including returns for observation stays and ED visits. Increases in observation and ED visits coincided with declines in readmissions for private insurance and Medicare. Return rates rose among patients with Medicaid and the uninsured.
AHRQ-authored.
Citation: Nuckols TK, Fingar KR, Barrett ML .
Returns to emergency department, observation, or inpatient care within 30 days after hospitalization in 4 states, 2009 and 2010 versus 2013 and 2014.
J Hosp Med 2018 May;13(5):296-303. doi: 10.12788/jhm.2883.
.
.
Keywords: Emergency Department, Health Insurance, Healthcare Cost and Utilization Project (HCUP), Hospitalization, Hospital Readmissions
Horwitz LI, Wang Y, Altaf FK
Hospital characteristics associated with postdischarge hospital readmission, observation, and emergency department utilization.
In this cross-sectional analysis, the authors found that including emergency department and observation stays in measures of postdischarge utilization produced similar results as measuring only readmissions, in that major teaching, urban and for-profit hospitals still perform disproportionately poorly versus nonteaching or public hospitals.
AHRQ-funded; HS022882.
Citation: Horwitz LI, Wang Y, Altaf FK .
Hospital characteristics associated with postdischarge hospital readmission, observation, and emergency department utilization.
Med Care 2018 Apr;56(4):281-89. doi: 10.1097/mlr.0000000000000882..
Keywords: Emergency Department, Hospital Readmissions, Hospitalization
Sills MR, Macy ML, Kocher KE
Return visit admissions may not indicate quality of emergency department care for children.
The goal of this retrospective analysis was to test the hypothesis that in-hospital outcomes are worse among children admitted during a return ED visit than among those admitted during an index visit. Children who were hospitalized in Florida and New York hospitals during a return visit within 7 days were classified as "ED return admissions" or "readmissions"; in-hospital outcomes for ED return admissions and readmissions were compared to "index admissions without return admission". The results indicate that children who are initially discharged from the ED and then have a return admission had lower severity but similar cost in comparison with children who experienced an index admission without a return admission. The authors conclude that this suggests that ED return visit admissions do not involve worse outcomes than index admissions.
AHRQ-funded; HS024160; HS016418.
Citation: Sills MR, Macy ML, Kocher KE .
Return visit admissions may not indicate quality of emergency department care for children.
Acad Emerg Med 2018 Mar;25(3):283-92. doi: 10.1111/acem.13324..
Keywords: Children/Adolescents, Emergency Department, Hospital Discharge, Hospital Readmissions, Hospitals, Quality of Care, Outcomes
Hernandez-Boussard T, Graham LA, Desai K
The fifth vital sign: postoperative pain predicts 30-day readmissions and subsequent emergency department visits.
The researchers hypothesized that inpatient postoperative pain trajectories are associated with 30-day inpatient readmission and emergency department (ED) visits. After analyzing National Veterans Affairs Surgical Quality Improvement data on inpatient general, vascular, and orthopedic surgery from 2008 to 2014, they concluded that postoperative pain trajectories identify populations at risk for 30-day readmissions and ED visits, and do not seem to be mediated by postdischarge complications.
AHRQ-funded; HS024096.
Citation: Hernandez-Boussard T, Graham LA, Desai K .
The fifth vital sign: postoperative pain predicts 30-day readmissions and subsequent emergency department visits.
Ann Surg 2017 Sep;266(3):516-24. doi: 10.1097/sla.0000000000002372.
.
.
Keywords: Emergency Department, Hospital Readmissions, Pain
Dharmarajan K, Qin L, Bierlein M
Outcomes after observation stays among older adult Medicare beneficiaries in the USA: retrospective cohort study.
This study characterized rates and trends over time of emergency department treatment-and-discharge stays, repeat observation stays, inpatient stays, any hospital revisit, and death within 30 days of discharge from observation stays. Hospital revisits are common after discharge from observation stays, frequently result in inpatient hospitalizations, and have increased over time among Medicare beneficiaries.
AHRQ-funded; HS023000.
Citation: Dharmarajan K, Qin L, Bierlein M .
Outcomes after observation stays among older adult Medicare beneficiaries in the USA: retrospective cohort study.
BMJ 2017 Jun 20;357:j2616. doi: 10.1136/bmj.j2616.
.
.
Keywords: Elderly, Emergency Department, Hospital Discharge, Hospital Readmissions, Medicare
Shy BD, Kim EY, Genes NG
Increased identification of emergency department 72-hour returns using multihospital health information exchange.
The authors tested the use of a health information exchange (HIE) to improve identification of 72-hour return visits compared to individual hospitals' site-specific data. They found that HIE increased the identification ability of 72-hour ED return analyses by a mean of 11.16% compared with site-specific (no HIE) analyses. They concluded that their analysis demonstrates incremental improvements in the ability to identify early ED returns using increasing levels of HIE data aggregation.
AHRQ-funded; HS021261.
Citation: Shy BD, Kim EY, Genes NG .
Increased identification of emergency department 72-hour returns using multihospital health information exchange.
Acad Emerg Med 2016 May;23(5):645-9. doi: 10.1111/acem.12954.
.
.
Keywords: Emergency Department, Health Information Exchange (HIE), Hospital Discharge, Hospital Readmissions
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
Sabbatini AK, Kocher KE, Basu A
In-hospital outcomes and costs among patients hospitalized during a return visit to the emergency department.
This study examined in-hospital clinical outcomes and resource use among patients who are hospitalized during an unscheduled return visit to the ED.It found that, compared with adult patients who were hospitalized during the index ED visit and did not have a return visit to the ED, patients who were initially discharged during an ED visit and admitted during a return visit to the ED had lower in-hospital mortality.
AHRQ-funded; HS024160; HS022982.
Citation: Sabbatini AK, Kocher KE, Basu A .
In-hospital outcomes and costs among patients hospitalized during a return visit to the emergency department.
JAMA 2016 Feb 16;315(7):663-71. doi: 10.1001/jama.2016.0649.
.
.
Keywords: Patient-Centered Outcomes Research, Hospital Readmissions, Emergency Department, Hospitalization
Chavez LJ, Liu CF, Tefft N
Unhealthy alcohol use in older adults: association with readmissions and emergency department use in the 30 days after hospital discharge.
This study examined the association between AUDIT-C alcohol screening results and 30-day readmissions or ED visits. Alcohol screening results indicating high-risk drinking that were available in medical records were modestly associated with risk for 30-day readmissions and were not associated with risk for ED visits.
AHRQ-funded; HS022800.
Citation: Chavez LJ, Liu CF, Tefft N .
Unhealthy alcohol use in older adults: association with readmissions and emergency department use in the 30 days after hospital discharge.
Drug Alcohol Depend 2016 Jan;158:94-101. doi: 10.1016/j.drugalcdep.2015.11.008.
.
.
Keywords: Alcohol Use, Elderly, Emergency Department, Hospital Readmissions, Lifestyle Changes
Mitchell SE, Martin JM, Krizman K
Design and rationale for a randomized controlled trial to reduce readmissions among patients with depressive symptoms.
This study aims to examine the effectiveness of RED-D, a modified brief Cognitive behavioral therapy (CBT) protocol delivered as a post-discharge extension of the Re-Engineered Discharge (RED), in reducing 30-day readmissions rates and emergency department use as well as depressive symptoms for medical patients with comorbid depressive symptoms.
AHRQ-funded; HS019700.
Citation: Mitchell SE, Martin JM, Krizman K .
Design and rationale for a randomized controlled trial to reduce readmissions among patients with depressive symptoms.
Contemp Clin Trials 2015 Nov;45(Pt B):151-6. doi: 10.1016/j.cct.2015.08.016.
.
.
Keywords: Depression, Emergency Department, Hospital Discharge, Hospital Readmissions, Behavioral Health
Singh S, Lin YL, Nattinger AB
Variation in readmission rates by emergency departments and emergency department providers caring for patients after discharge.
This study of Texas acute-care hospitals and ED facilities has found that the risk of readmission varies by ED provider caring for patients after discharge. A large part of this variation is explained by the ED facility in which the ED providers practice. Thus, ED provider practices patterns and ED facility systems of care may be a target for interventions to reduce readmissions.
AHRQ-funded; HS022134.
Citation: Singh S, Lin YL, Nattinger AB .
Variation in readmission rates by emergency departments and emergency department providers caring for patients after discharge.
J Hosp Med 2015 Nov;10(11):705-10. doi: 10.1002/jhm.2407.
.
.
Keywords: Emergency Department, Elderly, Hospital Discharge, Hospital Readmissions, Medicare
Toth M, Holmes M, Van Houtven C
Rural Medicare beneficiaries have fewer follow-up visits and greater emergency department use postdischarge.
This study tested whether rural Medicare beneficiaries have a lower likelihood of follow-up care and greater likelihood of a readmission and ED visit within 30 days postdischarge, compared with urban beneficiaries. The results provide evidence of lower quality postdischarge care for Medicare beneficiaries in rural settings.
AHRQ-funded; HS000032.
Citation: Toth M, Holmes M, Van Houtven C .
Rural Medicare beneficiaries have fewer follow-up visits and greater emergency department use postdischarge.
Med Care 2015 Sep;53(9):800-8. doi: 10.1097/mlr.0000000000000401..
Keywords: Rural Health, Elderly, Medicare, Hospital Readmissions, Emergency Department, Hospital Discharge
McElroy LM, Schmidt KA, Richards CT
Early postoperative emergency department care of abdominal transplant recipients.
The goal of this study was to describe early postoperative ED care of transplant recipients. It found that transplant recipients have a high frequency of ED visits in the first post transplantation year and high rates of subsequent hospital admission.
AHRQ-funded; HS000078.
Citation: McElroy LM, Schmidt KA, Richards CT .
Early postoperative emergency department care of abdominal transplant recipients.
Transplantation 2015 Aug;99(8):1652-7. doi: 10.1097/tp.0000000000000781..
Keywords: Emergency Department, Transplantation, Hospital Readmissions, Hospitals
Williams TP, Dimou FM, Adhikari D
Hospital readmission after emergency room visit for cholelithiasis.
This study evaluated the surgical follow-up and outcomes in patients seen in the emergency department (ED) for an episode of symptomatic cholelithiasis and discharged home for elective follow-up. It found that the failure to achieve a timely surgical follow-up leads to multiple ED readmissions and emergent gallstone-related hospitalizations, including emergency cholecystectomy.
AHRQ-funded; HS022134.
Citation: Williams TP, Dimou FM, Adhikari D .
Hospital readmission after emergency room visit for cholelithiasis.
J Surg Res 2015 Aug;197(2):318-23. doi: 10.1016/j.jss.2015.04.032..
Keywords: Hospital Readmissions, Patient-Centered Outcomes Research, Emergency Department, Hospital Discharge, Surgery