Table 2. SF-8 scores and their correlations with AIS and VAS results.
| SF-8* | Mean (SD) | Median [IQR] | AIS | VAS | |||
|---|---|---|---|---|---|---|---|
| R | P value | R | P value | ||||
| General health | 28.71 (22.40) | 25 [0–75] | 0.658 | <0.001 | −0.499 | <0.001 | |
| Physical functioning | 53.87 (36.72) | 50 [50–100] | 0.562 | <0.001 | −0.416 | <0.001 | |
| Vitality | 31.94 (37.31) | 0 [0–50] | 0.668 | <0.001 | −0.614 | <0.001 | |
| Mental health | 46.45 (50.04) | 0 [0–100] | 0.732 | <0.001 | −0.564 | <0.001 | |
| Role-physical | 47.74 (50.11) | 0 [0–100] | 0.621 | <0.001 | −0.516 | <0.001 | |
| Social functioning | 49.03 (50.15) | 0 [0–100] | 0.680 | <0.001 | −0.569 | <0.001 | |
| Role-emotional | 58.71 (49.40) | 100 [0–100] | 0.463 | <0.001 | −0.388 | <0.001 | |
| Bodily pain | 54.68 (37.23) | 75 [0–75] | 0.304 | <0.001 | −0.427 | <0.001 | |
| PCS | 42.30 (27.68) | 37.50 [18.75–68.75] | 0.636 | <0.001 | −0.579 | <0.001 | |
| MCS | 50.48 (44.09) | 50 [0–100] | 0.697 | <0.001 | −0.566 | <0.001 | |
*, the raw score of answers to each question of the questionnaire SF-8 was converted into a 0–100 scale, so that a score of 0 indicated the worst result and a score of 100 the best one. R, Spearman’s rank correlation coefficient; P, probability; SF-8, Short Form Health Survey; SD, standard deviation; AIS, Acceptance of Illness Scale; VAS, Visual Analog Scale; PCS, physical component score; MCS, mental component score; IQR, interquartile range.