Age (year) Dimensions (mm) | ≤20 (n = 133) | >20 (n = 867) | P value |
Length | 56.75 ± 13.87 mm | 66.51 ± 14.06 mm | 0.071 |
Width | 21.62 ± 6.42 mm | 22.54 ± 8.10 mm | 0.760 |
Wall thickness | 2.62 ± 1.31 mm | 2.34 ± 0.67 mm | 0.466 |