Fig. 1

Differences between patients’ reported VAS and values sets, and mean absolute errors (MAEs). Legend: FU, follow-up period after rehabilitation. Differences include respondents with EQ-5D descriptive system not fully completed but VAS reported, number of patients, see Table 1. MAEs include complete responses only, number of patients by observation point: 139, 135, 131, 133, 126, 132