| E/A | Group A | Group B | Chi-square test | |||
| No. | % | No. | % | X2 | P-value | |
| Normal | 115 | 76.7% | 70 | 46.7% | 6.284 | 0.012 |
| Reversed | 35 | 23.3% | 80 | 53.3% | ||