Table 1 Statistical overview of the screw length.
Screw length | Mean (mm) | Minimum (mm) | Maximum (mm) | Standard deviation | p-value | |
|---|---|---|---|---|---|---|
All samples (n = 185) | 131.7 | 104.9 | 161.4 | 10.71 | ||
Sex | m (n = 110) | 131.5 | 109.8 | 160.3 | 10.22 | 0.651 |
f (n = 75) | 132.1 | 104.9 | 161.4 | 11.45 | ||
Ethnicity | Europeans | 131.6 | 104.9 | 160.3 | 10.23 | 0.844 |
Japanese | 131.9 | 108.1 | 161.4 | 11.65 | ||