Fig. 3From: Mapping of the Gastrointestinal Short Form Questionnaire (GSF-Q) into EQ-5D-3L and SF-6D in patients with gastroesophageal reflux diseaseSF-6D: (up) and EQ-5D-3 L (down) observed (blue) and predicted (green) utility values vs. GERD severity for the linear (left), quadratic (center) and cubic (right) modelsBack to article page