Censoring and truncation are important concepts in survival analysis:
Censoring: This occurs when the survival time is not fully observed. For example, a patient may drop out of a study or the study may end before the event occurs. There are different types of censoring, including right-censoring, left-censoring, and interval-censoring. Truncation: This refers to situations where individuals are not observed or included in the study if their survival times fall outside a certain range. It can be left-truncation or right-truncation.
