. 2020 Jun 26;27(1):41–48. doi: 10.1111/srt.12906

TABLE 4.

Intergroup comparison and mean difference between different age groups

	ANOVA	Mean difference
	ANOVA	20‐29 vs 30‐39	20‐29 vs 40‐49	20‐29 vs 50‐59	30‐39 vs 40‐49	30‐39 vs 50‐59	40‐49 vs 50‐59
Linear measurements
Philtrum width	N/S
Lipwidth	<0.001	−2.29^*	−3.77^*	−4.13^*	−1.48	−1.84	−0.36
Upper lip height	0.002	0.16	0.95	−1.46^*	−0.79	−1.30^*	−0.50
Cutaneous upper lip height	<0.001	−0.73	−1.63^*	−2.99^*	−0.90	−2.26^*	−1.37^*
Upper vermillion height	<0.001	0.57	0.67	1.54^*	0.10	0.97^*	0.86^*
Lower lip height	N/S
Lower vermillion height	0.002	0.10	0.79	1.23^*	0.70	1.13^*	0.43
Cutaneous lower lip height	<0.001	−0.47	−1.06	−2.22^*	−0.59	−1.75^*	−1.16
Vermillion height	<0.001	0.67	1.47^*	2.76^*	0.80	2.09^*	1.30
Total lip height	0.003	−0.7	−1.39	−2.62^*	−0.69	−1.92^*	−1.23
Angular measurements
Angle 1	<0.001	−0.84	−2.49	−8.27^*	−3.33	−9.11^*	−5.78^*
Angle 2	<0.001	2.29	0.24	−7.37^*	−2.05	−9.66^*	−7.60^*
Angle 3	<0.001	0.36	3.94^*	7.56^*	3.58^*	7.20^*	3.62^*
Angle 4	<0.001	2.13	4.75^*	9.26^*	2.62	7.13^*	4.51^*
Surface area measurements
Upper lip area	<0.001	37.09	45.30^*	79.07^*	8.21	41.98	33.77
Lower lip area	<0.001	26.25	63.65^*	85.74^*	37.4	59.48^*	22.09
Total lip area	<0.001	63.35	108.95^*	164.81^*	45.61	101.46^*	55.86

^{^*}

Indicates P value < 0.05 according to Tukey's post hoc test; N/S indicates “not statistically significant.” Mean difference of linear measurements is in mm; mean difference of angular measurements is in degrees; and mean difference of surface area measurements is in mm².