Select the statement that is not accurate about survival analysis:
1.The log-rank test is used to compare between the Kaplan Meier survival curves.
2. The Kaplan-Meier curves allow us to adjust for potential confounders in the model.
3. Kaplan Meier curves allow us to compare 2 survival curves or more.
4. The Cox proportional hazards model is used for survival analysis and allows us to control for potential confounders in the model.
5. The outcome in this analysis is time-to-event and not just whether the event occurred or not
