Abstract
In this study, we evaluated the association between oncologists' perceptions of and attitudes toward one frequently used gene expression profiling assays, the Oncotype DX® and oncologists' intention to use this assay in making treatment recommendations for breast cancer patients. A nationally representative sample of breast cancer oncologists was surveyed using an adapted technology acceptance model. The survey response rate was 44.1%. The test characteristics `validity of the test' (p = 0.006) and 'use of Oncotype DX by fellow oncologists' (p = 0.0068) were significantly associated with use of the assay by oncologists. Oncologists' intention to use Oncotype DX increased consistently with their perceptions about its usefulness (β = 0.222). Insurance status of the patients was also significantly associated with physicians' use of Oncotype DX (p = 0.008). We report a novel application of an adapted technology acceptance model to understand the adoption of gene expression profiling by oncologists who treat breast cancer patients in making treatment recommendations.
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