International Journal of Science and Technology

International Journal of Science and Technology>> Volume 7, Number 7, July 2017

International Journal of Science and Technology


Accelerated Failure Time Frailty Model in Survival Analysis

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Author Raman T T ,Venkatesan P
On Pages 65-69
Volume No. 2
Issue No. 2
Issue Date February 01, 2012
Publishing Date February 01, 2012
Keywords Accelerated failure time model, Frailty model, Gamma, Weibull


Abstract

Breast cancer and its etiologic factors have been widely studied worldwide. Statistics has shown that around the nation people living with breast cancer are in need of identifying risk factors of breast cancer and prognostic factor of breast cancer for their survival, and this research is specific to South Indian population. This study attempts to explore the survival experience of breast cancer patients treated under adjuvant and Neo-adjuvant therapy. The important prognostic variables in response to treatment survival were identified using accelerated failure time model with and without frailty. About 90% received Neo-adjuvant therapy, and 94% had favorable response to treatment. The Accelerated failure time model with frailty performed better than model without frailty.

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2010 IRPN Publishers