National trends in advanced outpatient diagnostic imaging utilization: an analysis of the medical expenditure panel survey, 2000-2009
Autor: | Huan Huang, Victoria Federico, Kathleen Lang, Joseph Menzin, David W. Lee |
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Rok vydání: | 2013 |
Předmět: |
Adult
Male medicine.medical_specialty Pediatrics Insurance Claim Reporting Adolescent MEDLINE Utilization review Young Adult MEPS Outpatients medicine Medical imaging Trend Humans Radiology Nuclear Medicine and imaging Medical physics National trends Child Aged Aged 80 and over medicine.diagnostic_test business.industry Infant Newborn Infant Outpatient Magnetic resonance imaging Middle Aged Magnetic Resonance Imaging United States Hospitalization Utilization Tomography x ray computed Radiology Nuclear Medicine and imaging Child Preschool Utilization Review Diagnostic imaging Female business Medical Expenditure Panel Survey Tomography X-Ray Computed Research Article |
Zdroj: | BMC Medical Imaging |
ISSN: | 1471-2342 2000-2009 |
Popis: | Background Concerns have been raised regarding growth in advanced diagnostic imaging use. This study evaluated trends in national outpatient MRI/CT utilization rates during 2000-2009 and factors associated with utilization. Methods This retrospective database analysis used data on all respondents in the nationally representative U.S. Medical Expenditure Panel Survey (MEPS) during 2000-2009. Visits involving advanced diagnostic imaging were identified based on self-reported use of MRI or CT tests at emergency departments, office-based medical providers, and outpatient departments. The imaging utilization rate was defined as the number of outpatient visits with MRI/CT per 1,000 person-years. Results were weighted to create nationally representative estimates at the person-year level for each year and the pooled 10-year period. A multivariate logistic regression was estimated to identify predictors of imaging use. Results A total of 319,246 person-years were included in the analysis. MRI/CT utilization rates increased from 64.3 to 109.1 per 1,000 person years from 2000 to 2009, with older persons, females and Medicare enrollees having higher rates of use. Growth in imaging slowed in recent years; the average annual decline in the imaging growth rate was larger than that for all outpatient services (4.7% vs. 0.9%). The percentage of respondents with MRI/CT use (6.7% during 2000-2009) also increased at a slower rate in later years and declined during 2007-2009. The average number of MRI/CT visits among imaging users was steady at about 1.5 visits during 2000-2009. Age, female gender, White race, HMO participation, and all payer types (vs. uninsured) were significant predictors of imaging use. Compared to 2005, years 2000-2003 were associated with a significantly lower likelihood of imaging use, while years 2004-2009 were not significantly associated, suggesting a slow-down in later years. Conclusions Growth in advanced imaging utilization appears to have slowed in recent years, a finding of potential interest to policy-makers and payers. |
Databáze: | OpenAIRE |
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