Table 3.

Comparison of the distances between the age groups and the gender

Variable	Age group (years)	Gender
		Male	P*	Female	n*	P †	Total	P*
AB–MF (mm)	7–8	13.27±0.65	0.000	13.19±0.72	0.000	0.729	13.23±0.68	0.000
	9–10	14.99±0.75		14.95±0.57		0.815	14.97±0.65
	11–12	15.51±0.72		15.50±0.50		0.950	15.50±0.61
	Total	14.65±1.19		14.70±1.09			14.68±1.1
OP–MF (mm)	7–8	−3.13±0.85	0.000	−2.76±1.10	0.000	0.231	−2.95±0.99	0.000
	9–10	0.49±0.63		0.43±0.60		0.730	0.46±0.61
	11–12	3.51±0.81		3.52±1.01		0.962	3.51±0.91
	Total	0.509±2.88		0.74±2.62			0.63±2.74

*P: P value of one-way ANOVA test (significance among age groups), ^†P: P value of independent sample t-test (significance of male to female). Data are presented as mean±SD unless otherwise indicated. SD: Standard deviation. AB: Deepest point of the anterior border of the ramus, MF: Most superior–anterior point of mandibular foramen; OP: Occlusal plane of the mandibular first molar, ANOVA: Analysis of variance