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National Lung Cancer Screening Utilization Trends in the Veterans Health Administration.

Lewis JA, Samuels LR, Denton J, Edwards GC, Matheny ME, Maiga A, Slatore CG, Grogan E, Kim J, Sherrier RH, Dittus RS, Massion PP, Keohane L, Nikpay S, Roumie CL. National Lung Cancer Screening Utilization Trends in the Veterans Health Administration. JNCI cancer spectrum. 2020 Oct 1; 4(5):pkaa053.

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BACKGROUND: Many Veterans are high risk for lung cancer. Low-dose computed tomography (LDCT) is an effective strategy for lung cancer early detection in a high-risk population. Our objective was to describe and compare annual and geographic utilization trends for LDCT screening in the Veteran's Health Administration (VHA). METHODS: A national retrospective cohort of screened Veterans from January 1, 2011 to May 31, 2018 was used to calculate annual and regional rates of initial LDCT utilization per 1000 eligible Veterans. We identified Veterans with a first LDCT exam using common procedure terminology codes G0297 or 71250 and described as "lung cancer screening," "screening," or "LCS." The number of screen-eligible Veterans per year was calculated as unique Veterans aged 55 to 80 years seen at a Veterans Affairs medical center (VAMC) in that year, multiplied by 32% (estimated proportion with eligible smoking history). We present 95% confidence intervals (CI) for rates. RESULTS: Screened Veterans had a mean age of 66.1?years (standard deviation [SD] = 5.6); 95.5% male; 77.4% Caucasian. There were 119 300 LDCT exams, of which 80 819 (67.7%) were initial. Nationally, initial screens increased from 0 (95% CI = 0.00 to 0.00) in 2011 to 29.6 (95% CI = 29.26 to 29.88) scans per 1000 eligible Veterans in 2018 ( < .001). Initial screens increased over time within all geographic regions, most prominently in northeastern and Florida VAMCs. CONCLUSION: VHA LDCT utilization increased from 2011 to 2018. However, overall utilization remained low. Future interventions are needed to increase lung cancer screening utilization among eligible Veterans.

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