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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.
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1 to 2 of 2 Research Studies DisplayedSingh 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