1. If the estimated S(t) = 0.3 at t = 36 months, this means that the 3 year survival probability is 0.3.
2. If the 3 year survival probability is 0.3, this means that 70% of patients die ('fail') within the first 3 years.
3. If the estimated S(t) = 0.3 at t = 36 months, this means that 30% of patients die ('fail') within the first 3 years.
4. Observations that are censored due to withdrawal from the study are excluded from survival analysis.
5. When comparing adverse events in two study arms, a statistically significant result is needed to make determination about safety of intervention.
6. Using intent-to-treat approach in analyzing the adverse events usually will overestimate the rates of side effects?
Write true or false for the above given statements