Non-parametric estimation of the survival probability of children affected by TB meningitis.

Ramadurai, M.; Ponnuraja, C.

International Refereed Research Journal; 2011; II; 216-227.   

Abstract: In life threatening diseases, majority of the patients do not experience the event of interest during the follow-up period resulting in heavy censoring. The traditional Kaplan-Meier estimator over estimates the survival function. The TB Meningitis disease which is prevalent among children carries high mortality and morbidity. In this paper the two methods namely Weighted Kaplan-Meier estimator and Modified Weighted Kaplan-Meier estimators are applied to study the survival probability of children affected by TB Meningitis. The results are compared with the celebrated Kaplan-Meier, Nelson-Aalen and Huang's methods of estimation. The data used for the study have been collected from the Tuberculosis Research Center , ICMR, Chennai.

Keywords: Censored data, Survival Function, Kaplan-Meier estimate, TB Meningitis

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