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Table 3 Skin physiological parameters in three participant groups

From: The menstrual cycle regularity and skin: irregular menstrual cycle affects skin physiological properties and skin bacterial microbiome in urban Chinese women

Physiological parameter

Group

C1(Regular cycles)

C2(Less regular cycles)

C3(Irregular cycles)

Hydration**

70.5853 ± 9.48

65.0591 ± 12.58a**

62.2106 ± 12.18b*

TEWL*

21.018 ± 3.88

21.373 ± 4.233c*

24.053 ± 4.841b*

Sebum

70.31 ± 39.328

88.27 ± 56.840

79.59 ± 46.016

Gloss

9.4396 ± 2.4548

9.2459 ± 2.626

9.3635 ± 2.425

Melanin*

155.78 ± 31.143

143.915 ± 28.205a*

150.741 ± 24.996

Haemoglobin

323.64 ± 60.001

339.671 ± 58.028

357.847 ± 48.932

Elasticity(R2)

0.799 ± 0.063

0.778 ± 0.064

0.781 ± 0.069

Firmness(F4)

15.439 ± 4.774

14.762 ± 4.410

16.046 ± 3.477

pH

5.042 ± 0.407

5.124 ± 0.415

5.120 ± 0.446

L*

62.4757 ± 3.523

60.6415 ± 2.466a**

60.4214 ± 1.215b*

a***

13.8943 ± 3.188

15.3766 ± 2.071a***

16.4188 ± 1.534b***

b**

14.620 ± 1.671

13.9819 ± 1.821a*

13.0847 ± 1.236b**,c*

Wrinkle

88.9797 ± 44.541

89.9689 ± 29.513

94.5208 ± 29.632

Smoothness*

237.75 ± 77.842

207.6715 ± 58.771a*

200.9626 ± 69.144

  1. L represents brightness, with the darkest black indicated by L = 0 and the brightest white indicated by L = 100. a represents the green–red component, with green in the negative direction and red in the positive direction. b represents the blue-yellow component, with blue in the negative direction and yellow in the positive direction. C1: Group with regular menstrual cycles; C2: Group with less regular menstrual cycles; C3: Group with irregular menstrual cycles. Difference test method: Wilcoxon rank–sum test, a: differences test between C1 and C2 groups; b: differences test between C1 and C3 groups; c: differences test between C2 and C3 groups
  2. *p < 0.05
  3. **p < 0.01
  4. ***p < 0.001
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BMC Women's Health

ISSN: 1472-6874

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