1. A microcosting and cost–consequence analysis of clinical genomic testing strategies in autism spectrum disorder
- Author
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Christian R. Marshall, Edwin J. Young, Wilson W L Sung, Richard M. Zur, Dimitri J. Stavropoulos, Kate Tsiplova, Daniele Merico, Wendy J. Ungar, Sergio L. Pereira, and Stephen W. Scherer
- Subjects
0301 basic medicine ,Marginal cost ,Whole Genome Sequencing ,Autism Spectrum Disorder ,Genome, Human ,Cost consequences ,business.industry ,030105 genetics & heredity ,Microarray Analysis ,medicine.disease ,03 medical and health sciences ,030104 developmental biology ,Unknown Significance ,Autism spectrum disorder ,Exome Sequencing ,Statistics ,Costs and Cost Analysis ,medicine ,Chromosomes, Human ,Humans ,Personalized medicine ,business ,Positive Finding ,Genetics (clinical) ,Exome sequencing - Abstract
PurposeWhole-exome (WES) and whole-genome sequencing (WGS) increase the diagnostic yield in autism spectrum disorder (ASD) compared to chromosomal microarray (CMA), but there have been no comprehensive cost analyses. The objective was to perform such an assessment of CMA, WES, and WGS and compare the incremental cost per additional positive finding in hypothetical testing scenarios.MethodsFive-year patient and program costs were estimated from an institutional perspective. WES and WGS estimates were based on HiSeq 2500 with an additional WGS estimate for HiSeq X platforms. Parameter uncertainty was assessed with probabilistic and deterministic sensitivity analysis.ResultsThe cost per ASD sample was CAD$1,655 (95% CI: 1,611; 1,699) for WES, CAD$2,851 (95% CI: 2,750; 2,956) for WGS on HiSeq X, and CAD$5,519 (95% CI: 5,244; 5,785) on HiSeq 2500, compared to CAD$744 (95% CI 714, 773) for CMA. The incremental cost was over CAD$25,000 per additional positive finding if CMA was replaced by newer technology.ConclusionWhile costs for WES and WGS remain high, future reductions in material and equipment costs, and increased understanding of newly discovered variants and variants of unknown significance will lead to improved value.
- Published
- 2017
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