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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 4 of 4 Research Studies DisplayedMueller S, Zheng J, Orav EJ
Inter-hospital transfer and patient outcomes: a retrospective cohort study.
Inter-hospital transfer (IHT, the transfer of patients between hospitals) occurs regularly and exposes patients to risks of discontinuity of care, though outcomes of transferred patients remains largely understudied. The purpose of this retrospective cohort study was to evaluate the association between IHT and healthcare utilisation and clinical outcomes. The investigators concluded that IHT was associated with higher costs, longer LOS and lower odds of discharge home, but was differentially associated with odds of early death and 30 -day mortality depending on patients' disease category.
AHRQ-funded; HS023331.
Citation: Mueller S, Zheng J, Orav EJ .
Inter-hospital transfer and patient outcomes: a retrospective cohort study.
BMJ Qual Saf 2019 Nov;28(11):e1. doi: 10.1136/bmjqs-2018-008087..
Keywords: Transitions of Care, Hospitals, Patient Safety, Elderly, Outcomes, Chronic Conditions, Mortality, Medicare
Singh G, Agarwal A, Zhang W
Impact of PAP therapy on hospitalization rates in Medicare beneficiaries with COPD and coexisting OSA.
This retrospective cohort study analyzed data from a national sample of fee-for-service Medicare beneficiaries with a diagnosis of chronic obstructive pulmonary disease (COPD) and coexisting obstructive sleep apnea (OSA) who had begun positive airway pressure (PAP) therapy in 2011. The effect of PAP therapy on emergency room visits and hospitalizations for all-cause and COPD-related conditions was also examined. PAP therapy was more beneficial for older adults, those with higher COPD complexity, and those with three or more comorbidities. PAP therapy in elderly patients with overlap syndrome is associated with a reduction in hospitalization for COPD-related conditions, but not for all-cause hospitalizations or ER visits.
AHRQ-funded; HS020642; HS022134.
Citation: Singh G, Agarwal A, Zhang W .
Impact of PAP therapy on hospitalization rates in Medicare beneficiaries with COPD and coexisting OSA.
Sleep Breath 2019 Mar;23(1):193-200. doi: 10.1007/s11325-018-1680-0..
Keywords: Respiratory Conditions, Sleep Problems, Hospitalization, Medicare, Chronic Conditions
Starr P, Agarwal A, Singh G
Obstructive sleep apnea with chronic obstructive pulmonary disease among Medicare beneficiaries.
This research letter describes a claims-based study of Medicare beneficiaries conducted by the authors that examined the diagnosed prevalence and trend of overlap syndrome (the coexistence of chronic obstructive pulmonary disease [COPD] and obstructive sleep apnea [OSA] in a single individual). A total of 159,084 patients with COPD were included in the study; 11 percent had coexisting OSA. Data were gathered from multiple files: the Medicare Denominator File, the Medicare Provider Analysis and Review File, the Outpatient Standard Analytic File, the 100% Physician/Supplier Data File, and the Durable Medical Equipment File. Medicare enrollment files were used to gather information on patient characteristics and categorize subjects by age, sex, race, and socioeconomic status. The authors note that the prevalence of diagnosed overlap syndrome has increased fourfold during the 10-year study period.
AHRQ-funded; HS020642; HS022134.
Citation: Starr P, Agarwal A, Singh G .
Obstructive sleep apnea with chronic obstructive pulmonary disease among Medicare beneficiaries.
Ann Am Thorac Soc 2019 Jan;16(1):153-56. doi: 10.1513/AnnalsATS.201712-932OC..
Keywords: Sleep Problems, Respiratory Conditions, Medicare, Chronic Conditions
Kuo YF, Raji MA, Chen NW
Trends in opioid prescriptions among Part D Medicare recipients From 2007 to 2012.
The researchers used national Medicare data from 2007-2012 to assess temporal and geographic trends in rates of opioid prescription and relationship to opioid toxicity and different state regulations in Part D Medicare recipients. Their analyses of the Medicare data demonstrated substantial growth in opioid prescriptions from 2007 to 2011 and large variation in opioid prescriptions across states.
AHRQ-funded; HS022134.
Citation: Kuo YF, Raji MA, Chen NW .
Trends in opioid prescriptions among Part D Medicare recipients From 2007 to 2012.
Am J Med 2016 Feb;129(2):221.e21-30. doi: 10.1016/j.amjmed.2015.10.002..
Keywords: Chronic Conditions, Elderly, Medicare, Medication, Opioids, Pain