Explain the difference between cumulative incidence and survival.
The cumulative probability defines the probability at the start of the interval and
throughout. The likelihood of living past the interval is indicated by the interval
survival rate, also known as probability.
Use the information on Figure 1 to create two new figures. One figure will have the
periods of follow up of individuals in the treatment group with the individual follow-up
times arranged from shortest to longest. Do a separate figure for the individuals in
the gold standard group.
Using Table 1 as the model create and fill two Tables. One table for the treatment
group and another for the gold standard group.
For each group, treatment, and gold standard, report the cumulative probability of
survival at the end of the follow-up period.
Draw a graph with separate curves for the treatment and gold standard groups using
the individual's conditional probability of survival. Explain the results.
What are the assumptions one must consider when using the Kaplan-Meier method
to calculate cumulative incidence?
-Censoring occurs regardless of how likely the event of interest will occur, and
individuals who are included in the research early and later have similar survival
rates. able[[ID,Group,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24],[1,GS,,,,,,,,,,,,CR,,,,,,,,,,,,],[2,GS,,,,,,,,,,,,,,,,,,,,,,,,],[3,T,,,,,,,,,,,,,,,,,,,,,,,,],[4,T,,,,,,,,,,,,,,,,,,,,CR,,,,],[5,T,,,,,,,,,,,,,,C,,,,,,,,,,],[6,GS,,,,,,,,,,,,,,,,,,,,CR,,,,],[7,GS,,,,,,,,,,,,,,,,,C,,,,,,,],[8,GS,,,,,,,,,,,,,,,,,,,,,,,,],[9,T,,,,,,,,,,,,,,,,,,,,,,,,],[10,T,,,,,,,,,,,,,,,,,,,,,,,,],[11,GS,,,,,,,,,,CR,,,,,,,,,,,,,,],[12,GS,,,,,,,,,,,,,,,,,,,,,,,,],[13,T,,,,,,,,,,,,,,,,,,,,,,,,],[14,T,,,,,,,,,,,,,,,,,,,,,,,,],[15,GS,,,,,,,,,,,,,,,,,,,CR,,,,,],[16,GS,,,,,,,,,,,,,,,,,,,,,,,,],[17,GS,,,,,,,,,,,,,,,,,,,,C,,,,],[18,T,,,,,,,,,,,,,,CR,,,,,,,,,,],[19,T,,,,,,,,,CR,,,,,,,,,,,,,,,],[20,T,,,,,,,,,,,,,,,,,,,,,,,,]]
CR= cancer remission; C= censored ;T= Treatment; GS= Gold Standard
ID
Group GS
2
S
6
7
8
6
10 11
12 13 14 15 16 17 18
19
20 21 22
23
24
1 2
CR
S9 1- 1
3
4
CR
5 6
C
GS S9 GS
CR
7
8
6 10 11
T GS
CR
12 13 14
T
15 16 17
S9 GS GS
CR
C
18 19
T
CR
CR
20
-
CR = cancer remission; C = censored; T= Treatment; GS = Gold Standard