Abstract
The accelerated failure time model is one of the most commonly used alternative methods to the Cox proportional hazards model when the proportional hazards assumption is violated. Threshold regression is a relatively new alternative model for analyzing time-to-event data with non-proportional hazards. It is based on first-hitting-time models, where the time-to-event data can be modeled as the time at which the stochastic process of interest first hits a boundary or threshold state. This paper compares threshold regression and accelerated failure time models and demonstrates the situations when the accelerated failure time model becomes a special case of the threshold regression model. Three illustrative examples from clinical studies are provided.
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This research was supported in part by CDC/NIOSH grant OH008649 (Lee).
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He, X., Whitmore, G.A. (2013). Connecting Threshold Regression and Accelerated Failure Time Models. In: Lee, ML., Gail, M., Pfeiffer, R., Satten, G., Cai, T., Gandy, A. (eds) Risk Assessment and Evaluation of Predictions. Lecture Notes in Statistics, vol 215. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8981-8_3
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DOI: https://doi.org/10.1007/978-1-4614-8981-8_3
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