Consider the data shown in Table E11.7 (analysis date, 01/90; A, alive; D, dead). For each subject, determine the time (in months) to death (D) or to the ending date (for survivors whose status was marked as A); then calculate and graph the Kaplan-Meier curve.
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TABLE E11.7
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|
|
Subject
|
Starting
|
Ending
|
Status (A/D)
|
|
1
|
01/80
|
01/90
|
A
|
|
2
|
06/80
|
07/88
|
D
|
|
3
|
11/80
|
10/84
|
D
|
|
4
|
08/81
|
02/88
|
D
|
|
5
|
04/82
|
01/90
|
A
|
|
6
|
06/83
|
11/85
|
D
|
|
7
|
10/85
|
01/90
|
A
|
|
8
|
02/86
|
06/88
|
D
|
|
9
|
04/86
|
12/88
|
D
|
|
10
|
11/86
|
07/89
|
D
|