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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 DisplayedRay KN, Martsolf GR, Mehrotra A
Trends in visits to specialist physicians involving nurse practitioners and physician assistants, 2001 to 2013.
The purpose of this study is to examine trends in specialist physician visits where nurse practitioners (NPs) and physician assistants (PAs) provide care, based on the hypothesis that NPs and PAs provide care to patients of specialist physicians in increasing numbers, primarily for routine follow-up visits. Using the National Ambulatory Medical Care Survey (NAMCS) information on samples office visits, researchers identified visits to specialist physicians, divided these into surgical and medical specialists and examined unadjusted trends from 2001 - 2013 in the percentage of visits with NP or PA involvement. Visit characteristics associated with higher likelihood of NP or PA involvement were examined.
AHRQ-funded; HS022989.
Citation: Ray KN, Martsolf GR, Mehrotra A .
Trends in visits to specialist physicians involving nurse practitioners and physician assistants, 2001 to 2013.
JAMA Intern Med 2017 Aug;177(8):1213-16. doi: 10.1001/jamainternmed.2017.1630..
Keywords: Access to Care, Ambulatory Care and Surgery, Healthcare Delivery, Primary Care, Provider
Wang V, Maciejewski ML, Coffman CJ
Impacts of geographic distance on peritoneal dialysis utilization: refining models of treatment selection.
This study examined the relationship between distance to dialysis provider and patient selection of dialysis modality, informed by the absolute distance from a patient's home and relative distance of alternative modalities. It found a positive, nonlinear relationship between absolute distance to hemodialysis (HD) services and peritoneal dialysis (PD) use, with the magnitude of the effect increasing at greater distances.
AHRQ-funded; HS019479.
Citation: Wang V, Maciejewski ML, Coffman CJ .
Impacts of geographic distance on peritoneal dialysis utilization: refining models of treatment selection.
Health Serv Res 2017 Feb;52(1):35-55. doi: 10.1111/1475-6773.12489.
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Keywords: Dialysis, Access to Care, Healthcare Utilization, Kidney Disease and Health, Healthcare Delivery