Table 2.

Statistical characteristics of elastographic parameters of various skin layers determined in three consecutive measurements, separately for women aged ≤ 50 years and older, along with ICC values for intra-observer reproducibility and p-values for intergroup comparisons

Variable	Age ≤ 50 years (n = 28)					Age > 50 years (n = 29)
	Measurement 1	Measurement 2	Measurement 3	ICC	Measurement 1	Measurement 2	Measurement 3	ICC	P-value
Right suborbital region:
Dermis	21.71 ±4.13	21.46 ±3.92	21.89 ±3.99	0.852	16.55 ±3.68	16.21 ±3.60	17.00 ±4.16	0.866	< 0.001
Subcutaneous	20.86 ±3.65 tissue	20.04 ±3.87	20.11 ±3.60	0.948	15.38 ±3.88	15.31 ±3.62	15.21 ±3.67	0.953	< 0.001
SMAS	18.79 ±3.88	18.71 ±3.68	18.82 ±3.75	0.958	13.62 ±3.96	13.93 ±3.13	14.28 ±3.23	0.912	< 0.001
Left suborbital region:
Dermis	21.71 ±4.13	21.50 ±3.69	21.52 ±3.74	0.963	16.55 ±3.68	17.41 ±3.75	17.66 ±3.78	0.957	< 0.001
Subcutaneous tissue	20.32 ±4.00	19.82 ±3.49	20.21 ±3.62	0.956	14.79 ±3.57	15.34 ±3.45	15.66 ±3.51	0.935	< 0.001
SMAS	17.81 ±4.28	17.61 ±4.14	18.14 ±4.03	0.972	13.61 ±4.12	14.03 ±4.17	14.59 ±4.22	0.938	0.001
Right cheek:
Dermis	21.25 ±3.85	21.32 ±3.57	21.11 ±3.52	0.948	17.28 ±4.67	17.66 ±4.21	17.86 ±4.27	0.961	0.001
Subcutaneous tissue	20.07 ±3.80	20.11 ±3.27	19.89 ±3.75	0.958	14.62 ±4.44	15.21 ±4.14	16.21 ±3.89	0.933	< 0.001
SMAS	17.43 ±5.21	17.54 ±4.83	17.61 ±4.95	0.987	13.93 ±3.99	14.52 ±3.80	14.69 ±3.61	0.949	0.010
Left cheek:
Dermis	21.75 ±3.99	22.04 ±3.80	22.00 ±4.29	0.895	21.62 ±5.56	22.07 ±5.36	22.03 ±5.38	0.978	0.987
Subcutaneous tissue	19.52 ±3.53	19.36 ±3.22	19.11 ±3.17	0.931	15.92 ±4.17	16.55 ±3.74	16.86 ±3.68	0.901	0.003
SMAS	20.54 ±5.95	20.18 ±5.36	20.21 ±5.21	0.977	18.87 ±7.05	19.14 ±6.58	18.48 ±6.22	0.937	0.355