Question

A hypothetical study was conducted on ten participants who were followed up for the development of coronary heart disease (CHD) over a period of 10 years. The recorded data are given as follows:

Participant ID CHD Time
P1 5
P2 8
P3 2
P4 6+
P5 9
P6 6
P7 10+
P8 4
P9 8
P10 4+

Estimate the survival function using the K-M method.

19 Jan 2026
Answer :
Word Count : 265
Ten individuals were followed for up to 10 years, with “+” indicating right censoring. The observed event times are ordered as 2, 4, 5, 6, 8 and 9 years, with censoring at 4, 6 and 10 years. At time zero, the survival probability is 1 with 10 individuals at risk. At 2 years, _______ ___ _____ _______ _________ ______ ______ ____ ____.
___ ____ __________ ____ ___ ___.
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_________ ________ _______ _______ ________.
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__________ _____ ___ ______ ____ ________ _______ ____ _______ __________.
____ ____ __________ _______ _____.
______ ____ ________ __________ _________.
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_____ _________ _______ __________ _________ ________ ____ _________ ___ _________ ______ _____.
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__________ ___ _________ ______ ____ _____ ____ _________.
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_____ _______ ____ ______ _______ ________ _____.
________ ______ ___ _______ _______ ___ ____ ____ ________ ________ ____ ________.
_________ ________ ________ __________ _________.
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______ _________ ____ _____ ________ _______ _______ _______ ______ ____ ________.
_____ ______ ________.
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