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Table 1 Participants’ demographic and clinical characteristics in overall participants and by sex

From: Sex differences in subclinical hypothyroidism and associations with metabolic risk factors: a health examination-based study in mainland China

Variables

Overall (n = 5319)

Male (n = 3013)

Female (n = 2306)

p

Age (yrs)

42.53 ± 11.7

43.24 ± 11.40

41.62 ± 11.91

< 0.001

Education (yrs)

10.5 ± 3.81

10.8 ± 3.72

10.2 ± 3.90

< 0.001

Height (cm)

166.6 ± 8.0

171.60 ± 6.02

160.24 ± 6.30

< 0.001

Weight (kg)

65.4 ± 12.32

71.99 ± 10.65

56.37 ± 8.26

< 0.001

BMIa (kg/m 2)

23.4 ± 3.3

24.50 ± 3.26

21.93 ± 2.98

< 0.001

Waist circumference

82.62 ± 6.47

87.52 ± 5.18

77.23 ± 5.05

< 0.001

SBP (mm Hg)

120.9 ± 16.9

123.91 ± 16.27

116.74 ± 16.74

< 0.001

DBP (mm Hg)

74.2 ± 11.4

77.12 ± 11.43

70.72 ± 10.51

< 0.001

AC (mg/dL)

5.3 ± 1.1

5.35 ± 1.11

5.26 ± 1.03

< 0.001

Total Chol (mg/dL)

185.6 ± 34.8

187.53 ± 35.22

183.95 ± 35.18

< 0.001

TG (mg/dL)

136.6 ± 123.87

160.27 ± 143.56

104.79 ± 74.17

< 0.001

HDL-C (mg/dL)

54.43 ± 14.10

50.07 ± 11.22

60.94 ± 15.06

< 0.001

LDL-C (mg/dL)

92.6 ± 23.6

86.42 ± 19.52

98.05 ± 27.13

< 0.001

UA (mg/dL)

356.0 ± 91.3

400.01 ± 77.16

282.12 ± 60.23

< 0.001

Scr (umol/L)

69.18 ± 14.38

77.31 ± 10.70

55.56 ± 8.06

< 0.001

TSH concentration (mIU/L)

2.13 ± 2.51

1.97 ± 2.32

2.30 ± 2.72

< 0.001

Free-T3 concentration (pmol/L)

5.07 ± 0.55

5.29 ± 0.51

4.79 ± 0.48

< 0.001

Free-T4 concentration (pmol/L)

16.23 ± 1.95

16.71 ± 1.94

15.60 ± 1.77

< 0.001

  1. Data were presented as mean ± SD. Groups were compared using t-test.
  2. aBMI: calculated as weight (in kilogram) divided by height (in meter) squared
  3. Abbreviation: BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, WBC white blood cell, RBC red blood cell, PLT platelets; hemoglobin, hs-CRP high sensitivity C-reactive protein, AC fasting blood glucose, Total Chol cholesterol, TG triglyceride, HDL-C high density lipoprotein cholesterol, LDL-C low density lipoprotein cholesterol, UA uric acid; Scr: serum creatinine, TSH Thyroid Stimulating Hormone, Free-T3 free triiodothyroxine, Free-T4 free tetraiodothyroxine
  4. p < 0.05 was considered as statistically significance