Table 1 Descriptive statistics: creases shift to the right and the left in males and females
| Type | Sex | Min | Max | Mean ± SD |
|---|---|---|---|---|
| Creases shift to the right | Male (n = 75) | 1 | 34 | 9.77 ± 6.36 |
| Female (n = 75) | 6 | 37 | 16.36 ± 5.99 | |
| Creases shift to the left | Male (n = 75) | 0 | 13 | 4.05 ± 2.68 |
| Female (n = 75) | 0 | 15 | 6.56 ± 3.12 |