S4) Review the survival curve shown for a hypothetical study comparing the effects of two treatments (Treatment A and Treatment B), with survival measured in days a) What is the approximate 500-day cumulative survival for each group? Treatment A: Treatment B: b) What is the approximate median survival time? Treatment A: Treatment B: c) What is the approximate 2-year cumulative survival for each group? Treatment A: Treatment B: d) At what approximate time does cumulative mortality reach 25% for each group? Treatment A: Treatment B: 1.00 Survival probability 0.75- 0.50- 0.25 0.00 0 250 Treatment A Treatment B 500 Time (days) 750 1000
S4) Review the survival curve shown for a hypothetical study comparing the effects of two treatments (Treatment A and Treatment B), with survival measured in days a) What is the approximate 500-day cumulative survival for each group? Treatment A: Treatment B: b) What is the approximate median survival time? Treatment A: Treatment B: c) What is the approximate 2-year cumulative survival for each group? Treatment A: Treatment B: d) At what approximate time does cumulative mortality reach 25% for each group? Treatment A: Treatment B: 1.00 Survival probability 0.75- 0.50- 0.25 0.00 0 250 Treatment A Treatment B 500 Time (days) 750 1000
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:S4) Review the survival curve shown for a hypothetical study comparing the effects of two treatments
(Treatment A and Treatment B), with survival measured in days
1.00
a) What is the approximate 500-day cumulative survival
for each group?
Treatment A:
Treatment B:
b) What is the approximate median survival time?
Treatment A:
Treatment B:
c) What is the approximate 2-year cumulative survival
for each group?
Treatment A:
Treatment B:
d) At what approximate time does cumulative mortality reach 25% for each group?
Treatment A:
Treatment B:
Survival probability
0.75-
0.50-
0.25
0.00
0
250
Treatment A
Treatment B
500
Time
(days)
750
1000
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