Question: 13. Given the following survival curves what would be a good interpretation? a) That the two survival curves are different from each other but there

13. Given the following survival curves what would be a good interpretation?

a) That the two survival curves are different from each other but there are too many censored cases to make them valid

b) The two survival curves are the same but not enough participants had a migraine within the time-frame of the study

c) The two survival curves are the same but new treatment participants had migraines about two weeks earlier than the standard pain relief participants

d) All of the above

Cum Survival 1.0- 0.8- 0.6- 0.4 0.2- 0.0- Survival Functions 0.00 5.00

Cum Survival 1.0- 0.8- 0.6- 0.4 0.2- 0.0- Survival Functions 0.00 5.00 10.00 15.00 20.00 Time to next migraine Treatment New Migraine Treatment Regular pain relief

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