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- Adverse Events (4)
- Asthma (1)
- Blood Thinners (1)
- Cardiovascular Conditions (6)
- Children/Adolescents (1)
- Chronic Conditions (2)
- Comparative Effectiveness (3)
- Complementary and Alternative Medicine (1)
- Diabetes (3)
- Elderly (2)
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- Evidence-Based Practice (2)
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- Neurological Disorders (1)
- Newborns/Infants (2)
- (-) Outcomes (25)
- Patient-Centered Outcomes Research (6)
- Patient Adherence/Compliance (1)
- Patient Safety (2)
- Practice Patterns (1)
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- Racial and Ethnic Minorities (1)
- Research Methodologies (1)
- Respiratory Conditions (3)
- (-) Risk (25)
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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 25 of 25 Research Studies DisplayedDesai RJ, Wyss R, Jin Y
Extension of disease risk score-based confounding adjustments for multiple outcomes of interest: an empirical evaluation.
Use of disease risk score (DRS)-based confounding adjustment when estimating treatment effects on multiple outcomes is not well studied. In this empirical cohort study, the investigators compared dabigatran initiators and warfarin initiators with respect to risks of ischemic stroke and major bleeding in 12 sequential monitoring periods (90 days each), using data from the Truven Marketscan database (Truven Health Analytics, Ann Arbor, Michigan).
AHRQ-funded; HS022193.
Citation: Desai RJ, Wyss R, Jin Y .
Extension of disease risk score-based confounding adjustments for multiple outcomes of interest: an empirical evaluation.
Am J Epidemiol 2018 Nov;187(11):2439-48. doi: 10.1093/aje/kwy130.
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Keywords: Blood Thinners, Cardiovascular Conditions, Medication, Outcomes, Research Methodologies, Risk, Stroke
Dworsky JQ, Childers CP, Maggard-Gibbons M
High-risk colorectal surgery: what are the outcomes for geriatric patients?
This study examines the national burden and age-specific outcomes of previously defined high-risk colorectal procedures (HRCP) in geriatric patients using the 2014 National Inpatient Sample. The authors found that outcomes after HRCP are worse for older patients and for nonelective cases. They suggest that this information can inform preoperative counseling and targeted quality improvement projects.
AHRQ-funded; HS000046.
Citation: Dworsky JQ, Childers CP, Maggard-Gibbons M .
High-risk colorectal surgery: what are the outcomes for geriatric patients?
Am Surg 2018 Oct;84(10):1650-54..
Keywords: Elderly, Healthcare Cost and Utilization Project (HCUP), Outcomes, Risk, Surgery
Wahl TS, Graham LA, Morris MS
Association between preoperative proteinuria and postoperative acute kidney injury and readmission.
This retrospective cohort study investigated whether preoperative proteinuria is associated with surgical outcomes including postoperative acute kidney injury (AKI) and readmission. The cohort used were undergoing elective inpatient surgery at 119 Veterans Affairs facilities from October 2007 to September 2014. The data collected was for a 7-month period in 2016. A higher probability of 30-day unplanned readmission was associated with preoperative proteinuria and postoperative AKI.
AHRQ-funded; HS013852.
Citation: Wahl TS, Graham LA, Morris MS .
Association between preoperative proteinuria and postoperative acute kidney injury and readmission.
JAMA Surg 2018 Sep;153(9):e182009. doi: 10.1001/jamasurg.2018.2009..
Keywords: Kidney Disease and Health, Injuries and Wounds, Adverse Events, Surgery, Risk, Hospital Readmissions, Outcomes
Goto T, Shimada YJ, Faridi MK
Incidence of acute cardiovascular event after acute exacerbation of COPD.
There is a lack of comprehensive view of the association between acute exacerbation of COPD (AECOPD) and the risk of acute cardiovascular events. The purpose of this study was to determine the association of AECOPD with 30-day and 1-year incidences of acute cardiovascular event. The investigators concluded that AECOPD was associated with increased 30-day and 1-year incidences of acute cardiovascular event.
AHRQ-funded; HS023305.
Citation: Goto T, Shimada YJ, Faridi MK .
Incidence of acute cardiovascular event after acute exacerbation of COPD.
J Gen Intern Med 2018 Sep;33(9):1461-68. doi: 10.1007/s11606-018-4518-3.
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Keywords: Respiratory Conditions, Cardiovascular Conditions, Risk, Chronic Conditions, Heart Disease and Health, Outcomes
Garcia AV, Ladd MR, Crawford T
Analysis of risk factors for morbidity in children undergoing the Kasai procedure for biliary atresia.
The purpose of the study was to evaluate the perioperative risk factors for 30-day complications of the Kasai procedure in a large, cross-institutional, modern dataset. The authors concluded that major cardiac risk factors and perioperative blood transfusions increased the risk of post-operative complications in children undergoing the Kasai procedure. They assert that further research is warranted in the perioperative use of blood transfusions in this population.
AHRQ-funded; HS022932.
Citation: Garcia AV, Ladd MR, Crawford T .
Analysis of risk factors for morbidity in children undergoing the Kasai procedure for biliary atresia.
Pediatr Surg Int 2018 Aug;34(8):837-44. doi: 10.1007/s00383-018-4298-1.
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Keywords: Children/Adolescents, Outcomes, Risk, Surgery
Flory JH, Keating SJ, Siscovick D
Identifying prevalence and risk factors for metformin non-persistence: a retrospective cohort study using an electronic health record.
Non-persistence may be a significant barrier to the use of metformin. The objective of this study was to assess reasons for metformin non-persistence, and whether initial metformin dosing or use of extended release (ER) formulations affect persistence to metformin therapy. The investigators concluded that their data supported the routine prescribing of low starting doses of metformin as a tool to improve persistence.
AHRQ-funded; HS023898.
Citation: Flory JH, Keating SJ, Siscovick D .
Identifying prevalence and risk factors for metformin non-persistence: a retrospective cohort study using an electronic health record.
BMJ Open 2018 Jul 23;8(7):e021505. doi: 10.1136/bmjopen-2018-021505..
Keywords: Diabetes, Electronic Health Records (EHRs), Health Information Technology (HIT), Medication, Patient Adherence/Compliance, Outcomes, Patient-Centered Outcomes Research, Risk
Wu P, Escobar GJ, Gebretsadik T
Effectiveness of respiratory syncytial virus immunoprophylaxis in reducing bronchiolitis hospitalizations among high-risk infants.
This retrospective cohort study examined the effectiveness of respiratory syncytial virus (RSV) prophylaxis for infants born between 1996 and 2008. The infants were enrolled in the Kaiser Permanente Northern California integrated health system. Infants who ever received RSV immunoprophylaxis had a 32% decreased risk of bronchiolitis hospitalization and finants with chronic lung disease (CLD) had a 52% decreased risk. The 2014 American Academy of Pediatrics (AAP) guidelines changed recommendations for RSV immunoprophylaxis which made 48% of infants no longer eligible but nearly all infants with CLD would remain eligible.
AHRQ-funded; HS018454.
Citation: Wu P, Escobar GJ, Gebretsadik T .
Effectiveness of respiratory syncytial virus immunoprophylaxis in reducing bronchiolitis hospitalizations among high-risk infants.
Am J Epidemiol 2018 Jul;187(7):1490-500. doi: 10.1093/aje/kwy008..
Keywords: Comparative Effectiveness, Evidence-Based Practice, Hospitalization, Newborns/Infants, Outcomes, Patient-Centered Outcomes Research, Prevention, Respiratory Conditions, Risk
Westover AN, Nakonezny PA, Halm EA
Risk of amphetamine use disorder and mortality among incident users of prescribed stimulant medications in the Veterans Administration.
This study's aims were to ascertain the demographics of stimulant medication users compared with non-users, examine temporal trends of stimulant medication use and estimate risk factors for development of amphetamine use disorder (AUD) and mortality among new users of stimulant medications. The investigators concluded that in their cohort comorbid substance use disorders were common and were risk factors for development of (AUD).
AHRQ-funded; HS022418.
Citation: Westover AN, Nakonezny PA, Halm EA .
Risk of amphetamine use disorder and mortality among incident users of prescribed stimulant medications in the Veterans Administration.
Addiction 2018 May;113(5):857-67. doi: 10.1111/add.14122..
Keywords: Substance Abuse, Medication, Risk, Mortality, Patient-Centered Outcomes Research, Outcomes
Rudra S, Hui C, Rao YJ
Effect of radiation treatment volume reduction on lymphopenia in patients receiving chemoradiotherapy for glioblastoma.
The purpose of this study was to evaluate whether reduction in glioblastoma radiation treatment (RT) volume can reduce risk of acute severe lymphopenia (ASL). The investigators concluded that, among other findings, limited-field RT was associated with less lymphopenia after RT plus temozolomide and did not adversely affect progression-free survival or overall survival.
AHRQ-funded; HS022888.
Citation: Rudra S, Hui C, Rao YJ .
Effect of radiation treatment volume reduction on lymphopenia in patients receiving chemoradiotherapy for glioblastoma.
Int J Radiat Oncol Biol Phys 2018 May 1;101(1):217-25. doi: 10.1016/j.ijrobp.2018.01.069..
Keywords: Outcomes, Patient Safety, Risk
Spatz ES, Wang Y, Beckman AL
Traditional Chinese medicine for acute myocardial infarction in western medicine hospitals in China.
This study examined the use of traditional Chinese medicine (TCM) in patients admitted for acute myocardial infarction (AMI) in China during the first 24 hours of hospitalization. The data came from the China Patient-centered Evaluative Assessment of Cardiac Events Retrospective Study of Acute Myocardial Infarction. A chart review was done of randomly sampled patients in 2001, 2006 and 2011 in 162 Western medicine hospitals across China. Nearly all (99%) hospitals used some form of TCM, with Salvia miltiorrhiza being the most commonly prescribed. This TCM treatment (and others) was used intravenously and use has increased over the span of the study, despite lack of evidence of benefit or harm.
AHRQ-funded; HS023000.
Citation: Spatz ES, Wang Y, Beckman AL .
Traditional Chinese medicine for acute myocardial infarction in western medicine hospitals in China.
Circ Cardiovasc Qual Outcomes 2018 Mar;11(3):e004190. doi: 10.1161/circoutcomes.117.004190..
Keywords: Adverse Events, Cardiovascular Conditions, Complementary and Alternative Medicine, Heart Disease and Health, Hospitals, Mortality, Outcomes, Patient-Centered Outcomes Research, Patient Safety, Practice Patterns, Risk
Cardet JC, Louisias M, King TS
Income is an independent risk factor for worse asthma outcomes.
The authors investigated whether low income, low education, and high perceived stress were independent risk factors for treatment failure and asthma exacerbations in the context of a randomized controlled trial. They found that participants with lower income were more likely to experience adverse asthma outcomes independent of education, perceived stress, race, and medication adherence.
AHRQ-funded; HS022986.
Citation: Cardet JC, Louisias M, King TS .
Income is an independent risk factor for worse asthma outcomes.
J Allergy Clin Immunol 2018 Feb;141(2):754-60.e3. doi: 10.1016/j.jaci.2017.04.036..
Keywords: Asthma, Chronic Conditions, Low-Income, Outcomes, Patient-Centered Outcomes Research, Risk, Social Determinants of Health
Chang AL, Hurwitz E, Miyamura J
Maternal risk factors and perinatal outcomes among pacific islander groups in Hawaii: a retrospective cohort study using statewide hospital data.
This study compared perinatal outcomes between Pacific Islander and White women who delivered a singleton liveborn in any Hawaii hospital from January 2010 to December 2011. Significant differences in perinatal outcomes between Pacific Islander and White women and newborns were noted. All Pacific Islander groups had an increased risk of hypertension. Native Hawaiians had the highest risk of low birthweight infants.
AHRQ-funded; HS021903.
Citation: Chang AL, Hurwitz E, Miyamura J .
Maternal risk factors and perinatal outcomes among pacific islander groups in Hawaii: a retrospective cohort study using statewide hospital data.
BMC Pregnancy Childbirth 2015 Oct 05;15:239. doi: 10.1186/s12884-015-0671-4.
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Keywords: Maternal Care, Risk, Racial and Ethnic Minorities, Outcomes, Newborns/Infants
Tsilimingras D, Schnipper J, Duke A
Post-discharge adverse events among urban and rural patients of an urban community hospital: a prospective cohort study.
The researchers aimed to determine the rate of postdischarge adverse events (AEs), classify the types of post-discharge AEs, and identify risk factors for post-discharge AEs in urban and rural patients. They found that post-discharge AEs were common in both urban and rural patients and many were preventable or ameliorable.
AHRQ-funded; HS018694.
Citation: Tsilimingras D, Schnipper J, Duke A .
Post-discharge adverse events among urban and rural patients of an urban community hospital: a prospective cohort study.
J Gen Intern Med 2015 Aug;30(8):1164-71. doi: 10.1007/s11606-015-3260-3..
Keywords: Adverse Events, Hospital Discharge, Outcomes, Risk, Rural Health
Shah UH, Mandl LA, Mertelsmann-Voss C
Systemic lupus erythematosus is not a risk factor for poor outcomes after total hip and total knee arthroplasty.
The researchers sought to determine if systemic lupus erythematosus (SLE) remains an independent risk factor for poor arthroplasty outcomes or if other factors, such as avascular necrosis , continue to play a role. They found that SLE was not an independent risk factor for poor short-term pain or function after either hip or knee arthroplasty.
AHRQ-funded; HS016075.
Citation: Shah UH, Mandl LA, Mertelsmann-Voss C .
Systemic lupus erythematosus is not a risk factor for poor outcomes after total hip and total knee arthroplasty.
Lupus 2015 Aug;24(9):900-8. doi: 10.1177/0961203314566635.
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Keywords: Surgery, Risk, Outcomes, Adverse Events
Fink HA, Hemmy LS, MacDonald R
Intermediate- and long-term cognitive outcomes after cardiovascular procedures in older adults: a systematic review.
This study summarized evidence about cognitive outcomes in adults aged 65 years or older at least 3 months after coronary or carotid revascularization, cardiac valve procedures, or ablation for atrial fibrillation. It concluded that intermediate- and long-term cognitive impairment in older adults attributable to the studied cardiovascular procedures may be uncommon.
AHRQ-funded; 2902007100641.
Citation: Fink HA, Hemmy LS, MacDonald R .
Intermediate- and long-term cognitive outcomes after cardiovascular procedures in older adults: a systematic review.
Ann Intern Med 2015 Jul 21;163(2):107-17. doi: 10.7326/m14-2793..
Keywords: Cardiovascular Conditions, Elderly, Neurological Disorders, Outcomes, Patient-Centered Outcomes Research, Risk, Surgery
Santos CA, Brennan DC, Chapman WC
Delayed-onset cytomegalovirus disease coded during hospital readmission in a multicenter, retrospective cohort of liver transplant recipients.
The researchers sought to determine the risk factors and outcomes of delayed-onset CMV disease among a representative cohort of liver transplant recipients from multiple centers. They found that delayed-onset CMV disease coded during hospital readmission occurred more commonly than early-onset CMV disease and that prior transplant failure or rejection was a risk factor for delayed-onset CMV disease.
AHRQ-funded; HS019455.
Citation: Santos CA, Brennan DC, Chapman WC .
Delayed-onset cytomegalovirus disease coded during hospital readmission in a multicenter, retrospective cohort of liver transplant recipients.
Liver Transpl 2015 May;21(5):581-90. doi: 10.1002/lt.24089..
Keywords: Healthcare Cost and Utilization Project (HCUP), Risk, Transplantation, Outcomes
Ault MJ, Rosen BT, Scher J
Thoracentesis outcomes: a 12-year experience.
The researchers evaluated specific demographic and clinical factors that have been commonly associated with complications such as iatrogenic pneumothorax, re-expansion pulmonary edema and bleeding. They found that thoracenteses had a very low complication rate and concluded that current clinical guidelines and practice patterns may not reflect evidence-based best practices.
AHRQ-funded; HS021202.
Citation: Ault MJ, Rosen BT, Scher J .
Thoracentesis outcomes: a 12-year experience.
Thorax 2015 Feb;70(2):127-32. doi: 10.1136/thoraxjnl-2014-206114..
Keywords: Risk, Evidence-Based Practice, Respiratory Conditions, Respiratory Conditions, Outcomes
Chang SH, Luo S, O'Brian KK
Association between metformin use and progression of monoclonal gammopathy of undetermined significance to multiple myeloma in US veterans with diabetes mellitus: a population-based retrospective cohort study.
The authors assessed the association between metformin use and progression of monoclonal gammopathy of undetermined significance to multiple myeloma. They found that metformin use was associated with a reduced risk of progression to multiple myeloma.
AHRQ-funded; HS022330.
Citation: Chang SH, Luo S, O'Brian KK .
Association between metformin use and progression of monoclonal gammopathy of undetermined significance to multiple myeloma in US veterans with diabetes mellitus: a population-based retrospective cohort study.
Lancet Haematol 2015 Jan;2(1):e30-6. doi: 10.1016/s2352-3026(14)00037-4.
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Keywords: Diabetes, Medication, Outcomes, Risk
Spangler EL, Goodney PP, Schanzer A
Outcomes of carotid endarterectomy versus stenting in comparable medical risk patients.
The purpose of this study was to compare risk-stratified outcomes of carotid artery stenting (CAS) and carotid endarterectomy (CEA). Included in the study group were 11,336 patients who underwent isolated primary CEA and 544 who underwent primary CAS. The researchers found that asymptomatic normal- and high-risk patients do equally well after CEA or CAS. However, normal- and high-risk symptomatic patients have substantially worse outcomes with CAS compared with CEA.
AHRQ-funded; HS021581.
Citation: Spangler EL, Goodney PP, Schanzer A .
Outcomes of carotid endarterectomy versus stenting in comparable medical risk patients.
J Vasc Surg 2014 Nov;60(5):1227-31, 31.e1. doi: 10.1016/j.jvs.2014.05.044..
Keywords: Outcomes, Comparative Effectiveness, Risk, Cardiovascular Conditions, Heart Disease and Health
Huesch MD
The impact of short breaks from cardiac surgery on mortality and stay length in California.
In this small, exploratory study, the researchers sought to investigate potential surgical “forgetting” among cardiac surgeons taking a break from performing isolated coronary artery bypass graft (CABG) surgery in a large state-wide study in California. Patients operated on by surgeons who had not performed isolated CABG in the prior calendar month stayed in hospital 0.5 day longer.
AHRQ-funded; HS021868.
Citation: Huesch MD .
The impact of short breaks from cardiac surgery on mortality and stay length in California.
J Healthc Qual 2014 Sep-Oct;36(5):42-9. doi: 10.1111/jhq.12018..
Keywords: Surgery, Outcomes, Mortality, Risk
Santos CA, Brennan DC, Fraser VJ
Delayed-onset cytomegalovirus disease coded during hospital readmission after kidney transplantation.
The researchers sought to expand understanding of the scope, risk factors and outcomes associated with delayed-onset cytomegalovirus (CMV) disease among kidney transplant reci
AHRQ-funded; HS019455
Citation: Santos CA, Brennan DC, Fraser VJ .
Delayed-onset cytomegalovirus disease coded during hospital readmission after kidney transplantation.
Transplantation. 2014 Jul 27;98(2):187-94. doi: 10.1097/TP.0000000000000030..
Keywords: Transplantation, Hospital Readmissions, Risk, Outcomes
Strom Williams JL, Lynch CP, Winchester R
Gender differences in composite control of cardiovascular risk factors among patients with type 2 diabetes.
This study examined the gender differences in multiple cardiovascular disease (CVD) risk factor control in adults with type 2 diabetes seen in diverse clinical settings. It found that women had significantly poorer composite control of CVD risk outcomes compared with men, adjusting for relevant confounding factors. In unadjusted analyses, women had higher mean systolic blood pressure and LDL cholesterol levels compared with men.
AHRQ-funded; HS011418.
Citation: Strom Williams JL, Lynch CP, Winchester R .
Gender differences in composite control of cardiovascular risk factors among patients with type 2 diabetes.
Diabetes Technol Ther 2014 Jul;16(7):421-7. doi: 10.1089/dia.2013.0329..
Keywords: Cardiovascular Conditions, Risk, Diabetes, Outcomes, Sex Factors
Lyerly MJ, Houston JT, Boehme AK
Safety of intravenous tissue plasminogen activator administration with computed tomography evidence of prior infarction.
The researchers sought to determine if the presence of a previous stroke on pretreatment computed tomography (CT) is a predictor of hemorrhagic complications and functional outcomes after the administration of intravenous (IV) tissue plasminogen activator (tPA). Their data suggest that a prior stroke on CT should not be viewed as a reason to withhold this treatment unless it occurred within the last 3 months.
AHRQ-funded; HS013852.
Citation: Lyerly MJ, Houston JT, Boehme AK .
Safety of intravenous tissue plasminogen activator administration with computed tomography evidence of prior infarction.
J Stroke Cerebrovasc Dis 2014 Jul;23(6):1657-61. doi: 10.1016/j.jstrokecerebrovasdis.2014.01.011..
Keywords: Stroke, Risk, Outcomes, Imaging
Cox CL, Huston LJ, Dunn WR
Are articular cartilage lesions and meniscus tears predictive of IKDC, KOOS, and Marx activity level outcomes after anterior cruciate ligament reconstruction? A 6-year multicenter cohort study.
This study of 1,512 ACLR patients who were followed for 6 years found that both articular cartilage injury and meniscus tears/treatment at the time of ACLR were significant predictors of International Knee Documentation Center (IKDC) and Knee injury Osteoarthritis Outcome Score (KOOS) scores after ACLR. Having a grade 4 medial femoral condyle lesion significantly reduced a patient’s Marx activity level score at 6 years.
AHRQ-funded; HS016075
Citation: Cox CL, Huston LJ, Dunn WR .
Are articular cartilage lesions and meniscus tears predictive of IKDC, KOOS, and Marx activity level outcomes after anterior cruciate ligament reconstruction? A 6-year multicenter cohort study.
Am J Sports Med. 2014 May;42(5):1058-67. doi: 10.1177/0363546514525910..
Keywords: Outcomes, Surgery, Risk
Jonsson Funk M, Visco AG, Weidner AC
Long-term outcomes of vaginal mesh versus native tissue repair for anterior vaginal wall prolapse.
This study estimated the rate of repeat surgery after vaginal mesh versus native tissue repair for anterior vaginal wall prolapse. The researchers found that the overall risk of any future surgery was higher in the women receiving mesh; however, native tissue and vaginal mesh surgery had similar 5-year risks for recurrent prolapse.
AHRQ-funded; HS017950
Citation: Jonsson Funk M, Visco AG, Weidner AC .
Long-term outcomes of vaginal mesh versus native tissue repair for anterior vaginal wall prolapse.
Int Urogynecol J. 2013 Aug;24(8):1279-85. doi: 10.1007/s00192-013-2043-9..
Keywords: Comparative Effectiveness, Surgery, Women, Outcomes, Risk