Kaplan and Meier method

Question

20 Feb 2025

Answer :

Word Count : 224

The Kaplan-Meier method is a non-parametric statistical tool used to estimate the survival function from lifetime data. It is particularly useful in medical research to measure the probability of an event, such as death or relapse, occurring ________ ______ __________ ______ _________ ___ ________.
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Disease	Test result		Total
	+	–
Present	170	30	200
Absent	20	280	300

	Lung Cancer	No Lung Cancer	Total
Smokers	100	1220	1320
Non-smokers	50	2260	2310

S. No.	Cholesterol (mg/dL)	SBP (mm/Hg)
1	300	150
2	410	270
3	380	210
4	530	310
5	570	350
6	490	310
7	340	210
8	320	150
9	280	110
10	550	320
11	340	220
12	350	170
13	410	260
14	390	230
15	450	270

Risk Factor	Parameter Estimate	SE
Age	0.150	0.010
Gender	0.450	0.150
Systolic Blood Pressure	0.015	0.008
Smoking	0.650	0.170
Total Serum Cholesterol	0.002	0.004
Diabetes	-0.350	0.250