Table 3a: Comparison of pain scales by medical school class.
| Medical school class | ||||||
| Pain scalea | No. responses | MS1 | MS2 | MS3 | MS4 | P-valueb |
| VAS neck | 135 | 1.09 ± 1.77 | 0.61 ± 1.00 | 1.04 ± 1.66 | 1.07 ± 2.06 | 0.49 |
| VAS back | 135 | 1.56 ± 1.77 | 1.12 ± 1.57 | 1.70 ± 2.12 | 1.71 ± 2.13 | 0.52 |
| ODI | 135 | 4.58 ± 5.97 | 3.15 ± 3.94 | 4.96 ± 4.28 | 2.57 ± 3.86 | 0.26 |
aVAS: Visual Analog Scale; ODI: Oswestery Disability Index; bCalculated by ANOVA.