Search All Research Studies
AHRQ Research Studies Date
AHRQ Research Studies
Sign up: AHRQ Research Studies Email updates
Research Studies is a monthly compilation of research articles funded by AHRQ or authored by AHRQ researchers and recently published in journals or newsletters.
Results1 to 25 of 664 Research Studies Displayed
Collinsworth AW, Masica AL, Priest EL
Modifying the electronic health record to facilitate the implementation and evaluation of a bundled care program for intensive care unit delirium.
This case study describes how an integrated health care delivery system modified its inpatient electronic health record to accelerate the implementation and evaluation of ABCDE bundle deployment as a safety and quality initiative for the prevention of delirium in intensive care unit patients.
Citation: Collinsworth AW, Masica AL, Priest EL . Modifying the electronic health record to facilitate the implementation and evaluation of a bundled care program for intensive care unit delirium. eGEMS. 2014;2(1):1121. doi: 10.13063/2327-9214.1121..
Keywords: Electronic Health Records (EHRs), Health Information Technology (HIT), Intensive Care Unit (ICU), Patient Safety, Quality of Care
Holcomb CN, Graham LA, Richman JS
The incremental risk of noncardiac surgery on adverse cardiac events following coronary stenting.
The investigators sought to determine the incremental risk of noncardiac surgery on myocardial infarction (MI) and coronary revascularization following coronary stenting. They found that the incremental risk of noncardiac surgery on adverse cardiac events among post-stent patients is highest in the initial 6 months following stent implantation and stabilizes at 1.0% after 6 months.
Citation: Holcomb CN, Graham LA, Richman JS . The incremental risk of noncardiac surgery on adverse cardiac events following coronary stenting. J Am Coll Cardiol 2014 Dec 30;64(25):2730-9. doi: 10.1016/j.jacc.2014.09.072.
Keywords: Adverse Events, Cardiovascular Conditions, Patient-Centered Healthcare, Risk, Surgery
Bobb JF, Obermeyer Z, Wang Y
Cause-specific risk of hospital admission related to extreme heat in older adults.
The purpose of this study was to identify possible causes of hospital admissions during extreme heat events and to estimate their risks using historical data. The investigators found that among older adults, periods of extreme heat were associated with increased risk of hospitalization for fluid and electrolyte disorders, renal failure, urinary tract infection, septicemia, and heat stroke. They noted however, that the absolute risk increase was small and of uncertain clinical importance.
Citation: Bobb JF, Obermeyer Z, Wang Y . Cause-specific risk of hospital admission related to extreme heat in older adults. JAMA 2014 Dec 24-31;312(24):2659-67. doi: 10.1001/jama.2014.15715..
Keywords: Elderly, Hospitalization, Risk
Singh JA, Lewallen DG
Are outcomes after total knee arthroplasty worsening over time? A time-trends study of activity limitation and pain outcomes.
The authors examined whether function and pain outcomes of patients undergoing primary total knee arthroplasty (TKA) are changing over time. Using Mayo Clinic Total Joint Registry data, they found that patient-reported function and pain outcomes after primary TKA have worsened over the study period 1993-95 to 2002-05; this time-trend is independent of changes in preoperative pain/limitation and certain patient characteristics.
Citation: Singh JA, Lewallen DG . Are outcomes after total knee arthroplasty worsening over time? A time-trends study of activity limitation and pain outcomes. BMC Musculoskelet Disord 2014 Dec 17;15:440. doi: 10.1186/1471-2474-15-440.
Keywords: Centers for Education and Research on Therapeutics (CERTs), Orthopedics, Pain, Patient-Centered Outcomes Research, Surgery
Franklin PD, Lewallen D, Bozic K
Implementation of patient-reported outcome measures in U.S. total joint replacement registries: rationale, status, and plans.
The authors report on the status of patient-reported outcomes (PRO) implementation as well as perceived barriers and facilitators of PRO use among ﬁve U.S. total joint replacement registries. They find that the current stage of implementation of patient-reported outcomes measures varies widely among U.S. registries.
Citation: Franklin PD, Lewallen D, Bozic K . Implementation of patient-reported outcome measures in U.S. total joint replacement registries: rationale, status, and plans. J Bone Joint Surg Am 2014 Dec 17;96 Suppl 1:104-9. doi: 10.2106/jbjs.n.00328..
Keywords: Registries, Surgery, Comparative Effectiveness, Patient-Centered Outcomes Research
Singh JA, Lewallen DG
Increasing obesity and comorbidity in patients undergoing primary total hip arthroplasty in the U.S.: a 13-year study of time trends.
The researchers examined the time-trends in key demographic and clinical characteristics of patients undergoing primary total hip arthroplasty (THA). They found that obesity, medical and psychological comorbidity increased and the underlying diagnosis of RA/inflammatory arthritis decreased rapidly in primary THA patients over 13-years.
Citation: Singh JA, Lewallen DG . Increasing obesity and comorbidity in patients undergoing primary total hip arthroplasty in the U.S.: a 13-year study of time trends. BMC Musculoskelet Disord 2014 Dec 17;15:441. doi: 10.1186/1471-2474-15-441..
Keywords: Surgery, Obesity, Risk, Registries, Arthritis
McCullagh LJ, Sofianou A, Kannry J
User centered clinical decision support tools: adoption across clinician training level.
This study examined the differences in adoption of CDS tools across providers’ training level. It found that the completion rates of the CDS calculator and medication order sets were higher among first year residents compared to all other training levels. Attending physicians were the less likely to accept the initial step of the CDS tool (29.3 percent) or complete the medication order sets (22.4 percent) that guided their prescription decisions.
Citation: McCullagh LJ, Sofianou A, Kannry J . User centered clinical decision support tools: adoption across clinician training level. Appl Clin Inform 2014 Dec 17;5(4):1015-25. doi: 10.4338/aci-2014-05-ra-0048.
Keywords: Clinical Decision Support (CDS), Decision Making, Practice Patterns
Van der Wees PJ, Friedberg MW, Guzman EA
Comparing the implementation of team approaches for improving diabetes care in community health centers.
The researchers sought to clarify implementation processes and experiences of integrating office-based medical assistant (MA) panel management and community health worker (CHW) community-based management into routine care for diabetic patients. They found that CHW and MA responsibilities converged over time to focus on health coaching of diabetic patients, with the MA health coaches experiencing difficulty in allocating dedicated time due to other responsibilities. Time constraints also limited the personal introduction of patients to health coaches by clinicians. Participants highlighted the importance of a supportive team climate and proactive leadership as important enablers for MAs and CHWs to implement their health coaching responsibilities. This study suggests that a flexible approach to implementing health coaching is more important than fidelity to rigid models that do not allow for variable allocation of responsibilities across team members.
Citation: Van der Wees PJ, Friedberg MW, Guzman EA . Comparing the implementation of team approaches for improving diabetes care in community health centers. BMC Health Serv Res 2014 Dec 3;14:608. doi: 10.1186/s12913-014-0608-z.
Keywords: Diabetes, Patient-Centered Healthcare, Quality Improvement, Teams
Turan B, Stringer KL, Onono M
Linkage to HIV care, postpartum depression, and HIV-related stigma in newly diagnosed pregnant women living with HIV in Kenya: a longitudinal observational study.
The investigators examined associations between linkage to HIV care, postpartum depression, and internalized stigma in a population with a high risk of depression: newly diagnosed HIV-positive pregnant women. They found that, in this study group of women from rural Kenya, at 6 weeks postpartum, those who had not linked to HIV care after testing positive at their first antenatal visit had higher levels of depression and internalized stigma, compared to women who had linked to care. Internalized stigma mediated the effect of linkage to care on depression. Furthermore, participants who had both linked to HIV care and initiated antiretroviral therapy reported the lowest levels of depressive symptoms.
Citation: Turan B, Stringer KL, Onono M . Linkage to HIV care, postpartum depression, and HIV-related stigma in newly diagnosed pregnant women living with HIV in Kenya: a longitudinal observational study. BMC Pregnancy Childbirth 2014 Dec 3;14:400. doi: 10.1186/s12884-014-0400-4.
Keywords: Depression, Human Immunodeficiency Virus (HIV), Pregnancy, Social Stigma
Concannon TW, Fuster M, Saunders T
A systematic review of stakeholder engagement in comparative effectiveness and patient-centered outcomes research.
This study reviewed 70 articles on methods of stakeholder engagement in comparative effectiveness research and patient-centered outcomes research. The authors found frequent engagement with patients, modestly frequent engagement with clinicians, and infrequent engagement with other stakeholders.The roles and activities of stakeholders were highly variable across research and program reports.
Citation: Concannon TW, Fuster M, Saunders T . A systematic review of stakeholder engagement in comparative effectiveness and patient-centered outcomes research. J Gen Intern Med. 2014 Dec;29(12):1692-701. doi: 10.1007/s11606-014-2878-x..
Keywords: Comparative Effectiveness, Clinician-Patient Communication, Decision Making
Moyer VA, Papile LA, Eichenwald E
An intervention to improve transitions from NICU to ambulatory care: quasi-experimental study.
The authors tested whether a multifaceted intervention that included a health coach to assist families and an enhanced personal health record to improve the quality of information available to parents and community professionals would decrease adverse events and improve family assessment of the transition of infants born prematurely or with complex medical problems to home. They found that a multicomponent discharge intervention designed to address specific problems identified using Healthcare Failure Modes and Effects Analysis did not reduce certain adverse outcomes in the post-discharge period.
Citation: Moyer VA, Papile LA, Eichenwald E . An intervention to improve transitions from NICU to ambulatory care: quasi-experimental study. BMJ Qual Saf 2014 Dec;23(12):e3. doi: 10.1136/bmjqs-2012-001726.
Keywords: Neonatal Intensive Care Unit (NICU), Ambulatory Care and Surgery, Patient Safety, Quality Improvement, Transitions of Care
Vyas A, Madhavan S, Sambamoorthi U
Association between persistence with mammography screening and stage at diagnosis among elderly women diagnosed with breast cancer.
The objective of this study is to determine the association between persistence with mammography screening and stage at breast cancer (BC) diagnosis among elderly women. It found that, as compared to women who were not persistent with mammography screening, women who were persistent with mammography screening were significantly more likely to be diagnosed at earlier stages of BC.
Citation: Vyas A, Madhavan S, Sambamoorthi U . Association between persistence with mammography screening and stage at diagnosis among elderly women diagnosed with breast cancer. Breast Cancer Res Treat 2014 Dec;148(3):645-54. doi: 10.1007/s10549-014-3204-3..
Keywords: Cancer, Cancer: Breast Cancer, Diagnostic Safety and Quality, Elderly, Prevention, Screening, Women
Vaughan Sarrazin MS, Jones M, Mazur A
Bleeding rates in Veterans Affairs patients with atrial fibrillation who switch from warfarin to dabigatran.
This study evaluated the relative risks of any, gastrointestinal, intracranial, and other bleeding for Veterans Affairs patients who switched to dabigatran after at least 6 months on warfarin. It found that among veterans with atrial fibrillation who switched to dabigatran, dabigatran increased the risk of gastrointestinal hemorrhage by 54% and was not associated with rates of other bleeding or death.
Citation: Vaughan Sarrazin MS, Jones M, Mazur A . Bleeding rates in Veterans Affairs patients with atrial fibrillation who switch from warfarin to dabigatran. Am J Med. 2014 Dec;127(12):1179-85. doi: 10.1016/j.amjmed.2014.07.024..
Keywords: Blood Thinners, Adverse Events, Patient Safety, Veterans
Prentice JC, Conlin PR, Gellad WF
Capitalizing on prescribing pattern variation to compare medications for type 2 diabetes.
This study used observational quasi-experimental methods using instrumental variables (IVs) to compare the effect of two hypoglycemic medications, sulfonylureas (SUs) and thiazolidinediones (TZDs), on long-term outcomes. It found that individuals who used an SU as a second-line agent experienced significantly more adverse long-term health outcomes than did individuals who started on a TZD.
Citation: Prentice JC, Conlin PR, Gellad WF . Capitalizing on prescribing pattern variation to compare medications for type 2 diabetes. Value Health 2014 Dec;17(8):854-62. doi: 10.1016/j.jval.2014.08.2674..
Keywords: Diabetes, Medication, Outcomes, Comparative Effectiveness
Berry JG, Hall M, Neff J
Children with medical complexity and Medicaid: spending and cost savings.
The authors described the expenditures for children with medical complexity insured by Medicaid across the care continuum, reported the increasingly large amount of spending on hospital care for these children, and presented a business case that estimates how cost savings might be achieved from potential reductions in hospital and emergency department use and shows how the savings could underwrite investments in outpatient and community care. They concluded by discussing the importance of these findings in the context of Medicaid's quality of care and health care reform.
Citation: Berry JG, Hall M, Neff J . Children with medical complexity and Medicaid: spending and cost savings. Health Aff 2014 Dec;33(12):2199-206. doi: 10.1377/hlthaff.2014.0828.
Keywords: Children/Adolescents, Medicaid, Healthcare Costs, Inpatient Care, Quality of Care
Raebel MA, Newcomer SR, Bayliss EA
Chronic opioid use emerging after bariatric surgery.
The purpose of this study was to determine opioid use the year after bariatric surgery among patients who did not use opioids chronically pre-surgery and to identify pre-surgery characteristics associated with chronic opioid use after surgery. It found that patients dispensed 60 to 119 days’ supply during the pre-surgery year were 13.23 to 14.29 times more likely to use opioids chronically post-surgery than patients without opioid use pre-surgery.
Citation: Raebel MA, Newcomer SR, Bayliss EA . Chronic opioid use emerging after bariatric surgery. Pharmacoepidemiol Drug Saf 2014 Dec;23(12):1247-57. doi: 10.1002/pds.3625..
Keywords: Medication, Obesity, Opioids, Pain, Substance Abuse, Surgery
Aterburn D, Powers JD, Toh S
Comparative effectiveness of laparoscopic adjustable gastric banding vs laparoscopic gastric bypass.
A retrospective study of 7,457 patients undergoing laparoscopic bariatric surgery found that patients receiving gastric bypass experienced much greater weight loss than those receiving gastric banding but they had a higher risk of short-term complications and long-term subsequent hospitalizations. However, gastric bypass patients had a lower risk of long-term subsequent intervention procedures than did gastric banding patients.
Citation: Aterburn D, Powers JD, Toh S . Comparative effectiveness of laparoscopic adjustable gastric banding vs laparoscopic gastric bypass. JAMA Surg. 2014 Dec;149(12):1279-87. doi: 10.1001/jamasurg.2014.1674..
Keywords: Obesity, Surgery, Adverse Events, Patient Safety, Hospitalization
Chin DL, Wilson MH, Bang H
Comparing patient outcomes of academician-preceptors, hospitalist-preceptors, and hospitalists on internal medicine services in an academic medical center.
The aim of this study was to compare patient outcomes between hospitalist-preceptors and hospitalists working alone, and between hospitalist-preceptors and academician-preceptors. The researchers found that preceptor-led medicine services were associated with more readmissions within 30 days, shorter lengths of stay, and lower index admission-associated costs. However, they also found that when considering cumulative hospitalization costs, patients discharged by academician-preceptors incurred the highest cost and hospitalist-preceptors incurred the lowest cost.
Citation: Chin DL, Wilson MH, Bang H . Comparing patient outcomes of academician-preceptors, hospitalist-preceptors, and hospitalists on internal medicine services in an academic medical center. J Gen Intern Med 2014 Dec;29(12):1672-8. doi: 10.1007/s11606-014-2982-y.
Keywords: Comparative Effectiveness, Hospital Readmissions, Patient-Centered Outcomes Research, Teams
Banerjee M, Muenz DG, Worden FP
Conditional survival in patients with thyroid cancer.
This study used data from Surveillance, Epidemiology, and End Results (SEER) registry to determine conditional 5-year disease-specific survival based on patient age, gender, and stage. It found that patients with localized thyroid cancer have excellent conditional 5-year survival, irrespective of where they are in their survivorship phase. In addition, patients with regional thyroid cancer have relatively stable conditional 5-year survival.
Citation: Banerjee M, Muenz DG, Worden FP . Conditional survival in patients with thyroid cancer. Thyroid 2014 Dec;24(12):1784-9. doi: 10.1089/thy.2014.0264..
Keywords: Cancer, Mortality, Outcomes, Registries
Sentell TL, Juarez DT, Ahn HJ
Disparities in diabetes-related preventable hospitalizations among working-age Native Hawaiians and Asians in Hawai'i.
Elderly (65+) Native Hawaiian, Filipino, and Japanese men and Filipino women have a higher risk of diabetes-related potentially preventable hospitalizations than whites. The authors sought to determine if similar disparities are seen among the non-elderly (< 65). They found that preventable hospitalizations rates were significantly higher for Native Hawaiians males compared to whites, but significantly lower for Chinese men and women, Japanese men and women, and Filipino men and women. Rates for Native Hawaiian females did not differ significantly from Whites. Disparities in diabetes-related preventable hospitalizations were seen for working-age (18-64) Native Hawaiian men even when their higher population-level diabetes prevalence was considered.
Citation: Sentell TL, Juarez DT, Ahn HJ . Disparities in diabetes-related preventable hospitalizations among working-age Native Hawaiians and Asians in Hawai'i. Hawaii J Med Public Health 2014 Dec;73(12 Suppl 3):8-13.
Keywords: Diabetes, Disparities, Hospitalization, Quality Indicators (QIs), Racial / Ethnic Minorities
Hines AL, Andrews RM, Moy E
AHRQ Author: Andrews RM, Moy E
Disparities in rates of inpatient mortality and adverse events: race/ethnicity and language as independent contributors.
The authors investigated inpatient mortality rates and obstetric trauma for self-reported speakers of English, Spanish, and languages of Asia and the Pacific Islands (API) and compared quality of care by language with patterns by race/ethnicity. They found that speaking a non-English principal language and having a non-White race/ethnicity did not place patients at higher risk for inpatient mortality, except for a higher stroke mortality for Japanese-speaking patients. Patients who spoke API languages or had API race/ethnicity had higher risk for obstetric trauma than English-speaking White patients, while Spanish-speaking Hispanic patients had more obstetric trauma than English-speaking Hispanic patients.
AHRQ-authored; AHRQ-funded; 290201300002C.
Citation: Hines AL, Andrews RM, Moy E . Disparities in rates of inpatient mortality and adverse events: race/ethnicity and language as independent contributors. Int J Environ Res Public Health 2014 Dec;11(12):13017-34. doi: 10.3390/ijerph111213017.
Keywords: Communication, Disparities, Healthcare Cost and Utilization Project (HCUP), Mortality, Racial / Ethnic Minorities
Fowler TT, Schiff J, Applegate MS
Early elective deliveries accounted for nearly 9 percent of births paid for by Medicaid.
The authors reported the results of a perinatal project, led by the state Medicaid medical directors, that sought to coordinate quality improvement efforts related to early elective deliveries for the Medicaid population. Using data from 22 states, they found that 8.9% of Medicaid singleton births were early elective deliveries, and they therefore estimated that there are 160,000 early elective Medicaid deliveries nationwide each year. They concluded that their study offers additional evidence and new tools for policy makers pursuing strategies to further reduce the number of such deliveries.
Citation: Fowler TT, Schiff J, Applegate MS . Early elective deliveries accounted for nearly 9 percent of births paid for by Medicaid. Health Aff 2014 Dec;33(12):2170-8. doi: 10.1377/hlthaff.2014.0534.
Keywords: Labor and Delivery, Maternal Care, Medicaid, Pregnancy
Cai L, Wu Y, Cheskin LI
Effect of childhood obesity prevention programmes on blood lipids: a systematic review and meta-analysis.
This study, the first systematic, quantitative study of childhood obesity prevention programs on blood lipids in high-income countries found that most interventions (70 percent) showed similar significant or no effects on adiposity- and lipid outcomes; 15 percent of interventions improved both adiposity- and lipids outcomes; 55 percent had no significant effects on either. These programs had a significant desirable effect on LDL-C and HDL-C.
Citation: Cai L, Wu Y, Cheskin LI . Effect of childhood obesity prevention programmes on blood lipids: a systematic review and meta-analysis. Obes Rev. 2014 Dec;15(12):933-44. doi: 10.1111/obr.12227..
Keywords: Children/Adolescents, Obesity, Prevention, Outcomes, Social Determinants of Health
Blecker S, Ladapo JA, Doran KM
Emergency department visits for heart failure and subsequent hospitalization or observation unit admission.
The purpose of this study was to examine trends in ED visits for heart failure and disposition following such visits. The investigators found that the number of ED visits for heart failure and the high proportion of ED visits with subsequent inpatient hospitalization have not changed in the last decade. They suggest that opportunities may exist to reduce hospitalizations by increasing short-term management of heart failure in the ED or observation unit.
Citation: Blecker S, Ladapo JA, Doran KM . Emergency department visits for heart failure and subsequent hospitalization or observation unit admission. Am Heart J 2014 Dec;168(6):901-8.e1. doi: 10.1016/j.ahj.2014.08.002..
Keywords: Cardiovascular Conditions, Emergency Department, Heart Disease and Health, Hospitalization
Wheeler SB, Kohler RE, Reeder-Hayes KE
Endocrine therapy initiation among Medicaid-insured breast cancer survivors with hormone receptor-positive tumors.
The researchers sought to characterize endocrine therapy (ET) use in a low-income Medicaid-insured population in North Carolina. They found that, of 222 women meeting the inclusion criteria, only 50 percent filled a prescription for ET. Results suggest substantial underutilization of ET in this population.
Citation: Wheeler SB, Kohler RE, Reeder-Hayes KE . Endocrine therapy initiation among Medicaid-insured breast cancer survivors with hormone receptor-positive tumors. J Cancer Surviv 2014 Dec;8(4):603-10. doi: 10.1007/s11764-014-0365-3..
Keywords: Cancer: Breast Cancer, Healthcare Utilization, Medicaid, Medication, Patient-Centered Outcomes Research