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Global Journal of Pure and Applied Sciences

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Probit regression in prediction analysis

M.E Nja

Abstract


To avoid diagnostic surgery, the probability of nodal involvement of prostate cancer is modeled using the probit link function to determine whether the lymph nodes of a patients are infected. X-ray status and level of acid
phosphatase in the blood serum of patients are considered as preoperative explanatory variables with the number of patients having nodal involvement as response variable. Within the framework of the probit regression model, the level of nodal involvement is predicted and the probability of nodal involvement obtained.



http://dx.doi.org/10.4314/gjpas.v15i3-4.48574
AJOL African Journals Online