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Table 3 Comparison of epidermal thickness ultrasound measures among the three groups

From: Application of high-frequency ultrasound to assess facial skin thickness in association with gender, age, and BMI in healthy adults

Facial region

Male

Female

18–44 years

(n = 25)

45–59 years

(n = 15)

 ≥ 60 years

(n = 9)

F

P value

18–44 years

(n = 37)

45–59 years

(n = 27)

 ≥ 60 years

(n = 5)

F

P value

Epidermis (mm)

          

Forehead

0.23 ± 0.03

0.22 ± 0.03

0.20 ± 0.04

1.555

0.222

0.20 ± 0.04

0.20 ± 0.02

0.19 ± 0.02

0.145

0.865

Glabella

0.21 ± .025

0.21 ± 0.04

0.19 ± 0.03

1.670

0.199

0.20 ± 0.02

0.19 ± 0.02

0.20 ± 0.01

0.894

0.414

Temple

0.19 ± 0.02

0.19 ± 0.02

0.18 ± 0.02

1.500

0.234

0.18 ± 0.02

0.18 ± 0.03

0.17 ± 0.01

0.566

0.571

Eyelid

0.19 ± 0.03

0.18 ± 0.02

0.16 ± 0.02

2.575

0.087

0.17 ± 0.02

0.16 ± 0.03

0.17 ± 0.02

0.937

0.397

Nasal dorsum

0.20 ± 0.03

0.21 ± 0.03

0.19 ± 0.02

1.809

0.175

0.19 ± 0.02

0.20 ± 0.02

0.18 ± 0.01

0.567

0.570

Zygoma

0.19 ± 0.03

0.19 ± 0.02

0.18 ± 0.02

0.912

0.409

0.18 ± 0.02

0.23 ± 0.28

0.18 ± 0.04

0.752

0.476

Submandibular

0.22 ± 0.12

0.20 ± 0.02

0.18 ± 0.02

0.927

0.403

0.18 ± 0.03

0.19 ± 0.02

0.18 ± 0.01

0.688

0.506

Neck

0.19 ± 0.03

0.20 ± 0.03

0.17 ± 0.02#

3.650

0.034

0.17 ± 0.03

0.17 ± 0.03

0.18 ± 0.03

0.406

0.668

Dermis (mm)

          

Forehead

1.22 ± 0.30

1.12 ± 0.27

1.12 ± 0.23

0.753

0.477

0.90 ± 0.14

0.83 ± 0.17

0.77 ± 0.17

2.598

0.082

Glabella

1.16 ± 0.33

1.15 ± 0.29

1.05 ± 0.20

0.510

0.604

0.95 ± 0.24

0.85 ± 0.23

0.75 ± 0.06

2.548

0.086

Temple

1.07 ± 0.22

1.04 ± 0.20

1.07 ± 0.18

0.178

0.838

0.82 ± 0.18

0.78 ± 0.19

0.71 ± 0.27

1.007

0.371

Eyelid

0.68 ± 0.15

0.65 ± 0.11

0.69 ± 0.17

0.183

0.834

0.56 ± 0.10

0.59 ± 0.11

0.63 ± 0.16

0.869

0.424

Nasal dorsum

0.98 ± 0.17

1.08 ± 0.13

1.09 ± 0.17

2.431

0.099

0.93 ± 0.24

0.90 ± 0.27

1.01 ± 0.20

0.393

0.677

Zygoma

1.21 ± 0.21

1.08 ± 0.18

1.07 ± 0.19

2.790

0.072

0.97 ± 0.33

0.78 ± 0.36*

0.63 ± 0.20*

3.853

0.026

Submandibular

1.07 ± 0.23

0.98 ± 0.22

0.96 ± 0.31

1.117

0.336

1.00 ± 0.29

0.84 ± 0.39

0.60 ± 0.26*

4.112

0.021

Neck

0.96 ± 0.19

1.04 ± 0.28

0.95 ± 0.19

0.730

0.488

0.96 ± 0.16

1.02 ± 0.24

1.03 ± 0.18

0.838

0.437

  1. Compared with the 18-44 years old group , *P < 0.05; Compared with the 45-59 years old group, #P < 0.05