The standard EORTC QOL questionnaire requires the patient to complete his or her initials and birthday. Is this necessary?
No, this information is not needed per se. It is [...]
I do not want to include all items. Can I use single items from a module?
Yes, you can use single items/scales from different modules. With [...]
Can we change the order of the items?
The order of the items in a validated questionnaire cannot [...]
Can I add some items?
Yes, with the EORTC Item Library you can make an [...]
Can I modify questions or alter the time scale?
No, it is not possible to modify the wording of [...]
Is there a short version of the QLQ-C30?
A short version of the questionnaire is not available. However, [...]
Can I use the module(s) without the core questionnaire (QLQ-C30)?
The various modules have been designed to be used in [...]