Evaluation of Low-Value Diagnostic Testing for 4 Common Conditions in the Veterans Health Administration.

Radomski TR, Feldman R, Huang Y, Sileanu FE, Thorpe CT, Thorpe JM, Fine MJ, Gellad WF. Evaluation of Low-Value Diagnostic Testing for 4 Common Conditions in the Veterans Health Administration. JAMA Network Open. 2020 Sep 1; 3(9):e2016445.

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Abstract:

Importance: Low-value care is associated with harm among patients and with wasteful health care spending but has not been well characterized in the Veterans Health Administration. Objectives: To characterize the frequency of and variation in low-value diagnostic testing for 4 common conditions at Veterans Affairs medical centers (VAMCs) and to examine the correlation between receipt of low-value testing for each condition. Design, Setting, and Participants: This retrospective cohort study used Veterans Health Administration data from 127 VAMCs from fiscal years 2014 to 2015. Data were analyzed from April 2018 to March 2020. Exposures: Continuous enrollment in Veterans Health Administration during fiscal year 2015. Main Outcomes and Measures: Receipt of low-value testing for low back pain, headache, syncope, and sinusitis. For each condition, sensitive and specific criteria were used to evaluate the overall frequency and range of low-value testing, adjusting for sociodemographic and VAMC characteristics. VAMC-level variation was calculated using median adjusted odds ratios. The Pearson correlation coefficient was used to evaluate the degree of correlation between low-value testing for each condition at the VAMC level. Results: Among 1?022?987 veterans, the mean (SD) age was 60 (16) years, 1?008?336 (92.4%) were male, and 761?485 (69.8%) were non-Hispanic White. A total of 343?024 veterans (31.4%) were diagnosed with low back pain, 79?176 (7.3%) with headache, 23?776 (2.2%) with syncope, and 52?889 (4.8%) with sinusitis. With the sensitive criteria, overall and VAMC-level low-value testing frequency varied substantially across conditions: 4.6% (range, 2.7%-10.1%) for sinusitis, 12.8% (range, 8.6%-22.6%) for headache, 18.2% (range, 10.9%-24.6%) for low back pain, and 20.1% (range, 16.3%-27.7%) for syncope. With the specific criteria, the overall frequency of low-value testing across VAMCs was 2.4% (range, 1.3%-5.1%) for sinusitis, 8.6% (range, 6.2%-14.6%) for headache, 5.6% (range, 3.6%-7.7%) for low back pain, and 13.3% (range, 11.3%-16.8%) for syncope. The median adjusted odds ratio ranged from 1.21 for low back pain to 1.40 for sinusitis. At the VAMC level, low-value testing was most strongly correlated for syncope and headache (?? = 0.56; P? < .001) and low back pain and headache (?? = 0.48; P? < .001). Conclusions and Relevance: In this cohort study, low-value diagnostic testing was common, varied substantially across VAMCs, and was correlated between veterans' receipt of different low-value tests at the VAMC level. The findings suggest a need to address low-value diagnostic testing, even in integrated health systems, with robust utilization management practices.