Methods The NHWS survey assessed demographics, health and wellness history and HCRU. The NHWS survey included validated patient-reported health outcome instruments. Health-related QoL was measured using the Medical Outcomes Study 12-item Short Form Survey Version 2 (SF-12v2; QualityMetric Inc., Lincoln, RI, USA) [23], the six-dimensional health state short form (SF-6D) [24] and the EuroQol 5-Dimension Health Questionnaire (EQ-5D) (EQ-5D-5LTM; EuroQol Research Foundation) [25].
