Table 4.

Statistical Analysis of Results for Landmark Displacement Ratios of Smiling Faces

Women	Cheilion	Alare	Crista Philtri	Men	Cheilion	Alare	Crista Philtri
ANOVA	<0.0001*	0.2971	0.0004*	ANOVA	<0.0001*	0.0015*	<0.0001*
Tukey’s				Tukey’s
Female 4–8 versus Female 8–12	0.9981	0.7569	0.576	Male 4–8 versus Male 8–12	0.9738	0.9647	0.9102
Female 4–8 versus Female 12–16	0.0838	0.7064	0.0097*	Male 4–8 versus Male 12–16	0.2139	0.937	0.056
Female 4–8 versus Female > 16	0.061	0.9995	0.0157*	Male 4–8 versus Male > 16	0.0008*	0.0848	0.0013*
Female 8–12 versus Female 12–16	0.0047*	0.9865	0.0269*	Male 8–12 versus Male 12–16	0.0176*	0.5806	0.055
Female 8–12 versus Female > 16	<0.0001*	0.4042	0.0177*	Male 8–12 versus Male > 16	<0.0001*	0.0247*	<0.0001*
Female 12–16 versus Female > 16	0.966	0.5327	0.7529	Male 12–16 versus Male > 16	0.295	0.0049*	0.8392

Statistical analysis between age groups for both genders for the smiling faces. The ANOVA and the Tukey’s post hoc test were performed.

^*Statistically significant (P < 0.05).