Table 1: The Amsterdam preoperative anxiety and information scale.

APAIS Questions Not at all Extremely
1 2 3 4 5
1. I am worried about the anaesthetic.
2. The anaesthetic is on my mind continually.
3. I would like to know as much as possible about the anaesthetic.
4. I am worried about the procedure.
5. The procedure is on my mind continually.
6. I would like to know as much as possible about the procedure.