Retrospective Cohort Study
Copyright ©The Author(s) 2024.
World J Clin Cases. Jun 6, 2024; 12(16): 2713-2721
Published online Jun 6, 2024. doi: 10.12998/wjcc.v12.i16.2713
Table 4 Comparison of VISIA parameters before and after intradermal injection of type I collagen (feature count, mean ± SD)

Baseline
1st
2nd
3rd
4th
5th
6th
Red area374.55 ± 22.89325.25 ± 22.92a283.60 ± 23.08a244.35 ± 25.81a212.70 ± 28.48a189.85 ± 28.52a174.90 ± 27.18a
Wrinkles118.40 ± 16.43114.80 ± 16.26111.60 ± 16.64108.80 ± 16.39106.45 ± 16.21104.30 ± 15.48102.20 ± 15.29a