The end of AE is an ending. If the end of AE is the end, the end time is the same. If the result of the adverse event is other circumstances, such as aggravation, the end time and the result time are different.
In the medical field, AE refers to the adverse events that occur after patients or clinical trial subjects receive drugs, but it does not necessarily have a causal relationship with treatment.
There are many kinds of adverse events, which can be divided into: drug adverse events, medical device adverse events and nursing adverse events. Unpreparable adverse events refer to the unpreparable damage caused by correct medical behavior; Preventable adverse events refer to injuries caused by errors or equipment failures that cannot be prevented during medical treatment.