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Title: Estimating the Cost-Effectiveness of Lung Cancer Screening with Low-Dose Computed Tomography for High-Risk Smokers in Australia
Authors: Wade S; Weber MF; Caruana M; Kang YJ; Marshall H; Manser R; Vinod S; Rankin N; Fong K; Canfell K
Categories: Cancer Control, Survivorship, and Outcomes Research - Health Services, Economic and Health Policy Analyses
Cancer Type - Lung Cancer
Keywords: Low-dose computed tomography; Cost-effectiveness; Screening
Year: 2018
Journal Title: Journal of Thoracic Oncology
Volume: 13
Issue: 8
Page number start: 1094
Page number end: 1105
Abstract: Introduction Health economic evaluations of lung cancer screening with low-dose computed tomography (LDCT) that are underpinned by clinical outcomes are relatively few. Methods We assessed the cost-effectiveness of LDCT lung screening in Australia by applying Australian cost and survival data to the outcomes observed in the U.S. National Lung Screening Trial (NLST), in which a 20% lung cancer mortality benefit was demonstrated for three rounds of annual screening among high-risk smokers age 55 to 74 years. Screening-related costs were estimated from Medicare Benefits Schedule reimbursement rates (2015), lung cancer diagnosis and treatment costs from a 2012 Australian hospital–based study, lung cancer survival rates from the New South Wales Cancer Registry (2005–2009), and other-cause mortality from Australian life tables weighted by smoking status. The health utility outcomes, screening participation rates, and lung cancer rates were those observed in the NLST. Incremental cost effectiveness ratios (ICER) were calculated for a 10-year time horizon. Results The cost-effectiveness of LDCT lung screening was estimated at AU$138,000 (80% confidence interval: AU$84,700–AU$353,000)/life-year gained and AU$233,000 (80% confidence interval: AU$128,000–AU$1,110,000)/quality-adjusted life year (QALY) gained. The ICER was more favorable when LDCT screening impact on all-cause mortality was considered, even when the costs of incidental findings were also estimated in sensitivity analyses: AU$157,000/QALY gained. This can be compared to an indicative willingness-to-pay threshold in Australia of AU$30,000 to AU$50,000/QALY. Conclusions LDCT lung screening using NLST selection and implementation criteria is unlikely to be cost-effective in Australia. Future economic evaluations should consider alternative screening eligibility criteria, intervals, nodule management, the impact and cost of new therapies, investigations of incidental findings, and incorporation of smoking cessation interventions.
Division: Cancer Research Division
Funding Body: KC receive salary support from the National Health and Medical Research Council of Australia (CDF #1082989)
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