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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 14 of 14 Research Studies DisplayedReistetter T, Hreha K, Dean JM
The pre-adaptation of a stroke-specific self-management program among older adults.
To understand the management of multimorbidity in aging stroke survivors and to examine the complex relationships between comorbidities, researchers used visual analytics to identify patient subgroup. Five significant subgroups of comorbidities such as obesity and cancer were identified. An interdisciplinary team constructed six vignettes that highlighted multimorbidity to customize a self-management program that fitted the needs of older adult stroke survivors.
AHRQ-funded; HS026133.
Citation: Reistetter T, Hreha K, Dean JM .
The pre-adaptation of a stroke-specific self-management program among older adults.
J Aging Health 2023 Oct; 35(9):632-42. doi: 10.1177/08982643231152520..
Keywords: Stroke, Cardiovascular Conditions, Elderly, Patient Self-Management
Troy AL, Herzig SJ, Trivedi S
Initiation of oral anticoagulation in US older adults newly diagnosed with atrial fibrillation during hospitalization.
This study investigated prevalence of oral anticoagulant initiation for newly diagnosed US older adults with atrial fibrillation within 7 days of hospital discharge. The authors used a 20% national sample of Medicare fee-for-service beneficiaries, identifying patients aged 65 years or older newly diagnosed with atrial fibrillation while hospitalized in 2016. Among 38,379 older adults newly diagnosed with atrial fibrillation while hospitalized (mean age 78.2; 51.8% female; 83.3% white), 36,633 (95.4%) had an indication for anticoagulation and 24.6% (9011) of those initiated an oral anticoagulant following discharge. Higher CHA(2) DS(2) -VASc score was associated with a small increase in oral anticoagulant initiation (predicted probability 20.5% for scores <2 and 24.9% for ≥4). Elevated HAS-BLED score was associated with a small decrease in probability of anticoagulant initiation (25.4% for score <2 and 23.1% for ≥3). Frailty was associated with decreased likelihood of oral anticoagulant initiation (24.7% for non-frail and 18.1% for moderately-severely frail). Anticoagulant initiation varied by primary reason for hospitalization, with predicted probability highest among patients with a primary diagnosis of atrial fibrillation (46.1%) and lowest among those with non-cardiovascular conditions (13.8%) and bleeds (3.6%).
AHRQ-funded; HS026215.
Citation: Troy AL, Herzig SJ, Trivedi S .
Initiation of oral anticoagulation in US older adults newly diagnosed with atrial fibrillation during hospitalization.
J Am Geriatr Soc 2023 Sep; 71(9):2748-58. doi: 10.1111/jgs.18375..
Keywords: Elderly, Blood Thinners, Medication, Heart Disease and Health, Cardiovascular Conditions, Stroke
Dean JM, Hreha K, Hong I
Post-acute care use patterns among hospital service areas by older adults in the United States: a cross-sectional study.
This study examined post-stroke acute care patterns across Hospital Service Areas among a national stroke cohort of Medicare beneficiaries to determine drivers of variation in post-acute care service utilization. Data was extracted from 2013 to 2014 (174,498 total records across 3232 Hospital Service Areas). Patients’ residence ZIP codes were linked to the facility ZIP code where care was received. Patients were considered a “traveler” if they did not live in the Hospital Service Area where they received care. Only 23.5% of all patients received care in skilled nursing-only Hospital Service Areas although 73.4% of all Hospital Service Areas were skilled nursing-only. Thirty-five percent of all patients traveled to a different Hospital Service Area from their residence. Patients living in skilled nursing-only Hospital Service Areas had more than 5 times the odds of traveling compared to those living in Hospital Service Areas with skilled nursing, inpatient rehabilitation, and long-term care hospital services.
AHRQ-funded; HS026133; HS024711.
Citation: Dean JM, Hreha K, Hong I .
Post-acute care use patterns among hospital service areas by older adults in the United States: a cross-sectional study.
BMC Health Serv Res 2021 Feb 25;21(1):176. doi: 10.1186/s12913-021-06159-z..
Keywords: Elderly, Hospitals, Access to Care, Stroke, Cardiovascular Conditions, Healthcare Utilization, Rehabilitation, Nursing Homes
Hay CC, Graham JE, Pappadis MR
The impact of one's sex and social living situation on rehabilitation outcomes after a stroke.
The goal of this retrospective observational study was to investigate sex differences and the impact of social living situation on individual functional independence measure outcomes after stroke rehabilitation. Subjects were Medicare fee-for-service beneficiaries discharged from inpatient rehabilitation facilities after a stroke. Results showed that when sociodemographic and clinical factors were controlled, females were more likely to discharge from inpatient rehabilitation at a supervision level or better for most functional independence measure items. Individuals who lived alone before their stroke had higher odds of discharging at a supervision level or better.
AHRQ-funded; HS022134.
Citation: Hay CC, Graham JE, Pappadis MR .
The impact of one's sex and social living situation on rehabilitation outcomes after a stroke.
Am J Phys Med Rehabil 2020 Jan;99(1):48-55. doi: 10.1097/phm.0000000000001276..
Keywords: Stroke, Rehabilitation, Elderly, Patient-Centered Outcomes Research, Sex Factors, Cardiovascular Conditions, Outcomes
Mentias A, Shantha G, Adeola O
Role of diabetes and insulin use in the risk of stroke and acute myocardial infarction in patients with atrial fibrillation: a Medicare analysis.
This study examined the role of diabetes and insulin use in the risk of stroke and acute myocardial infarction (AMI) in patients with atrial fibrillation (AF). A cohort of Medicare beneficiaries newly diagnoses with AF from 2011 to 2013 were identified. The cohort was divided into those with diabetes requiring insulin (6.7%), those with diabetes not requiring insulin (31.3%) and non-diabetics (62%). Diabetics requiring insulin were at the greatest risk of stroke and AMI, and diabetics not requiring insulin were at slightly lower risk, but non-diabetics had the lowest risk.
AHRQ-funded; HS023104.
Citation: Mentias A, Shantha G, Adeola O .
Role of diabetes and insulin use in the risk of stroke and acute myocardial infarction in patients with atrial fibrillation: a Medicare analysis.
Am Heart J 2019 Aug;214:158-66. doi: 10.1016/j.ahj.2019.05.003..
Keywords: Diabetes, Stroke, Heart Disease and Health, Cardiovascular Conditions, Risk, Chronic Conditions, Elderly
Mahalingam M, Moore Jx, Donnelly JP
Frailty syndrome and risk of sepsis in the REasons for Geographic And Racial Differences in Stroke (REGARDS) cohort.
This study examined the association between frailty (weakness, exhaustion, and low physical activity) and the risk of sepsis in stroke patients. Data from the cohort study Reasons for Geographic and Racial Differences in Stroke (REGARDS) was used. There was an associated increase in sepsis hospitalizations and 30-day case fatalities from sepsis in stroke patients with more frailty indicators.
AHRQ-funded; HS013852.
Citation: Mahalingam M, Moore Jx, Donnelly JP .
Frailty syndrome and risk of sepsis in the REasons for Geographic And Racial Differences in Stroke (REGARDS) cohort.
J Intensive Care Med 2019 Apr;34(4):292-300. doi: 10.1177/0885066617715251..
Keywords: Elderly, Racial and Ethnic Minorities, Risk, Sepsis, Stroke
Hirayama A, Goto T, Faridi MK
Age-related differences in the rate and diagnosis of 30-day readmission after hospitalization for acute ischemic stroke.
The purpose of this study was to examine the age-related differences in rate and principal reason of 30-day readmissions in patients hospitalized for acute ischemic stroke. Results showed that, among 620,788 hospitalizations, advanced age was associated with a higher 30-day readmission rate after acute ischemic stroke. Compared with younger adults, older adults were more likely to be readmitted for non-stroke-related conditions.
AHRQ-funded; HS023305.
Citation: Hirayama A, Goto T, Faridi MK .
Age-related differences in the rate and diagnosis of 30-day readmission after hospitalization for acute ischemic stroke.
Int J Stroke 2018 Oct;13(7):717-24. doi: 10.1177/1747493018772790..
Keywords: Elderly, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Hospitalization, Stroke
Blackburn J, Albright KC, Haley WE
Men lacking a caregiver have greater risk of long-term nursing home placement after stroke.
The purpose of this study was to understand how the availability of a caregiver can affect nursing home placement after ischemic stroke and how this affects different subgroups differently. The investigators found that in men aged 65 and older who have survived an ischemic stroke, the lack of an available caregiver is associated with triple the risk of NHP within 5 years.
AHRQ-funded; HS023009.
Citation: Blackburn J, Albright KC, Haley WE .
Men lacking a caregiver have greater risk of long-term nursing home placement after stroke.
J Am Geriatr Soc 2018 Jan;66(1):133-39. doi: 10.1111/jgs.15166..
Keywords: Cardiovascular Conditions, Caregiving, Elderly, Long-Term Care, Men's Health, Nursing Homes, Stroke
Albright KC, Howard VJ, Howard G
Age and sex disparities in discharge statin prescribing in the stroke belt: evidence from the reasons for geographic and racial differences in stroke study.
This study analyzed discharge medications for participants hospitalized for an ischemic stroke during follow-up of the REGARDS (Reasons for Geographic and Racial Differences in Stroke) study. It found that statin discharge prescribing may differ among Stroke Belt and non-Stroke Belt residents, particularly in older Americans and men.
AHRQ-funded; HS023009; HS013852.
Citation: Albright KC, Howard VJ, Howard G .
Age and sex disparities in discharge statin prescribing in the stroke belt: evidence from the reasons for geographic and racial differences in stroke study.
J Am Heart Assoc 2017 Aug 2;6(8). doi: 10.1161/jaha.117.005523.
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Keywords: Disparities, Medication, Stroke, Elderly, Sex Factors
Lima FO, Silva GS, Furie KL
Field assessment stroke triage for emergency destination: a simple and accurate prehospital scale to detect large vessel occlusion strokes.
The authors aimed to develop a simple field scale to identify large vessel occlusion strokes (LVOS). They found that Field Assessment Stroke Triage for Emergency Destination (FAST-ED) is a simple scale that, if successfully validated in the field, may be used by medical emergency professionals to identify LVOS in the prehospital setting enabling rapid triage of patients.
AHRQ-funded; HS011392.
Citation: Lima FO, Silva GS, Furie KL .
Field assessment stroke triage for emergency destination: a simple and accurate prehospital scale to detect large vessel occlusion strokes.
Stroke 2016 Aug;47(8):1997-2002. doi: 10.1161/strokeaha.116.013301.
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Keywords: Care Management, Elderly, Emergency Department, Stroke
Fonarow GG, Liang L, Thomas L
Assessment of home-time after acute ischemic stroke in Medicare beneficiaries.
The researchers evaluated home-time as a patient-centered outcome in Medicare beneficiaries with ischemic stroke in comparison with modified Rankin Scale (mRS) score at 90 days and at 1 year post event. They concluded that in a population of older patients with ischemic stroke, home-time was readily available from administrative data and associated with mRS at 90 days and 1 year.
AHRQ-funded; HS019479; HS016964.
Citation: Fonarow GG, Liang L, Thomas L .
Assessment of home-time after acute ischemic stroke in Medicare beneficiaries.
Stroke 2016 Mar;47(3):836-42. doi: 10.1161/strokeaha.115.011599.
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Keywords: Medicare, Stroke, Elderly, Home Healthcare, Patient-Centered Outcomes Research
Kabra R, Cram P, Girotra S
Effect of race on outcomes (stroke and death) in patients >65 years with atrial fibrillation.
The researchers sought to determine whether there are any racial differences in the outcomes of death and stroke in patients with newly diagnosed AF in patients >65 years. They found that the risks of death and stroke are higher in blacks and Hispanics compared with whites. The increased risk was eliminated or significantly reduced after adjusting for preexisting co-morbidities.
AHRQ-funded; HS021992.
Citation: Kabra R, Cram P, Girotra S .
Effect of race on outcomes (stroke and death) in patients >65 years with atrial fibrillation.
Am J Cardiol 2015 Jul 15;116(2):230-5. doi: 10.1016/j.amjcard.2015.04.012..
Keywords: Elderly, Heart Disease and Health, Cardiovascular Conditions, Racial and Ethnic Minorities, Stroke, Mortality, Risk
Lyerly MJ, Albright KC, Boehme AK
Patient selection for drip and ship thrombolysis in acute ischemic stroke.
The authors sought to determine whether the population of their offsite stroke patients receiving thrombolysis differed from patients treated directly at their stroke center. Their results showed that a smaller proportion of blacks and older adults arrived at their center from other facilities, possibly reflecting differences in how patients are selected for thrombolysis and transferred to a higher level of care.
AHRQ-funded; HS013852.
Citation: Lyerly MJ, Albright KC, Boehme AK .
Patient selection for drip and ship thrombolysis in acute ischemic stroke.
South Med J 2015 Jul;108(7):393-8. doi: 10.14423/smj.0000000000000306.
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Keywords: Critical Care, Elderly, Stroke, Racial and Ethnic Minorities
Wolff T, Fan T, Lewis P
AHRQ Author: Wolff T, Fan T
Screening for carotid artery stenosis.
This case study, based on recommendations of the U.S. Preventive Services Task Force, concerns a 65-year-old woman who presents for her yearly checkup. She walks one to two miles daily, is in generally good health, and has no significant cardiovascular history. Questions concern whether she should be screened for carotid artery stenosis, the accuracy of the different screening methods, and the benefits and harms of screening.
AHRQ-authored.
Citation: Wolff T, Fan T, Lewis P .
Screening for carotid artery stenosis.
Am Fam Physician 2015 May 15;91(10):717-8..
Keywords: U.S. Preventive Services Task Force (USPSTF), Elderly, Case Study, Screening, Stroke