From: Properties of patient-reported outcome measures in individuals following acute whiplash injury
Outcome range | N | Mean (SD) | Median | Floor | Ceiling | |
---|---|---|---|---|---|---|
EQ-5D (utility) | −0.594 to 1 | 3430 | 0.587 (0.298) | 0.689 | 0.1% | 8.3% |
EQ-5D (VAS) | 0 to 100 | 3361 | 63.67 (19.96) | 65.0 | 0.1% | 0.8% |
SF-6D | 0.41 to 1 | 3027 | 0.647 (0.136) | 0.615 | 0% | 0.7% |
SF-12 (PCS)* | 15.42 to 65.92 | 3076 | 40.26 (8.98) | 39.16 | 0% | 0% |
SF-12 (MCS)* | 9.51 to 68.21 | 3076 | 40.80 (12.80) | 40.25 | 0% | 0% |
NDI | 0 to 96 | 2963 | 21.03 (17.45) | 18.0 | 11.5% | 0% |