TABLE 6.

Comparison of PSES scale dimension scores between two groups.

Dimension	Group	1 Month post-treatment	3 Months post-treatment	6 Months post-treatment	12 Months post-treatment
Skin tightening improvement	Study group	11.2 ± 1.8	12.6 ± 1.5	12.1 ± 1.7	11.4 ± 1.9
(3–15 points)	Control group	8.9 ± 2.1	9.8 ± 2.0	9.3 ± 2.2	8.6 ± 2.3
	t value	5.283	6.714	6.047	5.841
	P value*	<0.001	<0.001	<0.001	<0.001
Skin texture improvement	Study group	14.8 ± 2.2	16.7 ± 1.9	15.9 ± 2.1	15.1 ± 2.3
(4–20 points)	Control group	11.7 ± 2.6	12.9 ± 2.4	12.2 ± 2.7	11.4 ± 2.8
	t value	5.742	7.394	6.821	6.285
	P value*	<0.001	<0.001	<0.001	<0.001
Overall appearance improvement	Study group	10.9 ± 1.6	12.1 ± 1.4	11.6 ± 1.5	10.8 ± 1.7
(3–15 points)	Control group	8.6 ± 1.9	9.4 ± 1.8	9.0 ± 2.0	8.3 ± 2.1
	t value	5.894	7.152	6.394	5.736
	P value*	<0.001	<0.001	<0.001	<0.001
Treatment experience evaluation	Study group	5.7 ± 0.9	5.9 ± 0.8	6.1 ± 0.9	5.8 ± 1.0
(2–10 points)	Control group	4.6 ± 1.1	4.8 ± 1.0	4.9 ± 1.1	4.4 ± 1.2
	t value	4.863	5.294	5.173	5.641
	P value*	<0.001	<0.001	0.004	0.008

P values corrected by Bonferroni method.