1922474 EQ VAS EQ visual analogue scale 108 1922473 EQ-VAS EuroQol VAS 11 1922472 EQ VAS EuroQol group's visual analog scale 2 1922470 EQ VAS EQ-5D-5L index and self-perceived health 1 1922471 EQ VAS EuroQol 5D-3L VAS 1