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Table 1 Baseline characteristics of the three groups

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

Variables

18–44 years

(n = 62)

45–59 years

(n = 42)

 ≥ 60 years

(n = 14)

F/χ2

P value

Sex n (%)

   

3.608

0.165

Male

25 (40.32%)

15 (35.71%)

9 (64.29%)

  

Female

37 (59.68%)

27 (64.29%)

5 (35.71%)

Smoking

15 (24.19%)

9 (21.43%)

4 (28.57%)

0.312

0.856

Alcohol use (%)

33 (53.23%)

16 (38.10%)

4 (28.57%)

4.032

0.133

Allergy (%)

9 (14.52%)

11 (26.19%)

1 (7.14%)

3.565

0.168

Height (cm)

164.37 ± 7.28

161.17 ± 7.41*

165.71 ± 7.21#

3.201

0.044

Weight (Kg)

63.10 ± 11.17

60.29 ± 10.64

66.21 ± 10.21

1.782

0.173

BMI (kg/m2)

23.23 ± 2.89

23.10 ± 2.92

24.03 ± 2.74

0.563

0.571

  1. Data are means ± SD or n[%]. BMI, body mass index; SD, standard deviation
  2. Compared with the group 18–44 years old
  3. *P < 0.05; Compared with the group 45–59 years old
  4. #P < 0.05