The number of response options was increased to five in this new version, and some of the wordings of the scale were revisited to be clearer and the instruction for EQ-VAS was simplified.
The number of response options was increased to five in this new version; no problems, slight problems, moderate problems, severe problems and unable to/extreme problems. Some of the wordings of the scale were revisited to be clearer and the instruction for EQ-VAS was simplified.