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2012 ; 22
(2
): 151-5
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Analysis of censored data
#MMPMID22838181
Lucijanic M
; Petrovecki M
Biochem Med (Zagreb)
2012[]; 22
(2
): 151-5
PMID22838181
show ga
Analyzing events over time is often complicated by incomplete, or censored,
observations. Special non-parametric statistical methods were developed to
overcome difficulties in summarizing and comparing censored data. Life-table
(actuarial) method and Kaplan-Meier method are described with an explanation of
survival curves. For the didactic purpose authors prepared a workbook based on
most widely used Kaplan-Meier method. It should help the reader understand how
Kaplan-Meier method is conceptualized and how it can be used to obtain statistics
and survival curves needed to completely describe a sample of patients. Log-rank
test and hazard ratio are also discussed.