TABLE 4.

Comparison of skin texture improvement assessment results between two groups.

Indicator	Group	1 Month post-treatment	3 Months post-treatment	6 Months post-treatment	12 Months post-treatment
Skin roughness index improvement rate (%)	Study group	15.2 ± 3.6	22.8 ± 4.1	24.5 ± 4.3	20.7 ± 3.8
	Control group	9.8 ± 2.9	14.2 ± 3.2	15.8 ± 3.4	12.9 ± 2.9
	t value	7.542	9.682	9.347	9.871
	P value*	<0.001	<0.001	<0.001	<0.001
Pore area improvement rate (%)	Study group	12.3 ± 2.9	18.6 ± 3.7	20.1 ± 4.0	16.8 ± 3.5
	Control group	7.6 ± 2.2	11.4 ± 2.8	12.9 ± 3.1	10.2 ± 2.6
	t value	8.014	9.254	8.763	9.135
	P value*	<0.001	<0.001	<0.001	<0.001
Pore density improvement rate (%)	Study group	11.8 ± 2.7	17.2 ± 3.4	18.9 ± 3.8	15.4 ± 3.2
	Control group	7.1 ± 2.1	10.6 ± 2.5	12.3 ± 2.9	9.7 ± 2.4
	t value	8.536	9.417	8.294	8.962
	P value*	<0.001	<0.001	<0.001	<0.001
Fine line depth improvement rate (%)	Study group	18.7 ± 4.0	26.3 ± 4.5	28.7 ± 4.8	23.9 ± 4.1
	Control group	11.2 ± 3.1	16.8 ± 3.6	18.4 ± 3.9	14.7 ± 3.2
	t value	9.241	10.386	10.147	10.753
	P value*	<0.001	<0.001	<0.001	<0.001
Texture uniformity improvement rate (%)	Study group	14.6 ± 3.3	21.4 ± 3.9	23.6 ± 4.2	19.3 ± 3.6
	Control group	9.1 ± 2.6	13.7 ± 3.1	15.2 ± 3.3	12.1 ± 2.8
	t value	8.195	9.572	9.684	9.815
	P value*	<0.001	<0.001	<0.001	<0.001

P values corrected by Bonferroni method.