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Table 1 Baseline Characteristics of Study Participants by sex and abdominal obesity (n = 5727)

From: Influence of uric acid on the correlation between waist circumference and triglyceride glucose index: an analysis from CHARLS

Characteristic

Men (n = 2663)

Women (n = 3064)

P

Total

Baseline (2011)

 Age (years)

59.9 (8.57)

58.2 (8.58)

< 0.001

59.0 (8.62)

Ethnicity, n (%)

 Han

2491 (93.5)

2820 (92.0)

0.029

5311 (92.7)

 Others

172 (6.5)

244 (8.0)

416 (7.3)

Education, n (%)

 Illiteracy

852 (32.0)

1853 (60.5)

< 0.001

2705 (47.2)

 Primary school

764 (28.7)

572 (18.7)

1336 (23.3)

 Middle school

709 (26.6)

456 (14.9)

1165 (20.3)

 High school

222 (8.3)

146 (4.8)

368 (6.4)

 Tertiary high school or above

116 (4.4)

37 (1.2)

153 (2.7)

 Current smoking, n (%)

2010 (75.5)

240 (7.8)

< 0.001

2250 (39.3)

 Drinking ≥1 times/month, n (%)

1214 (45.6)

225 (7.3)

< 0.001

452 (7.9)

 SBP (mmHg)

129.7 (19.96)

130.0 (21.59)

0.537

129.8 (20.85)

 DBP (mmHg)

75.9 (12.34)

75.4 (11.70)

0.121

75.6 (12.00)

 HR (beats/min)

71.9 (10.79)

72.4 (9.70)

0.051

72.2 (10.22)

 HDL-C (mg/dL)

48.33 (39.05–59.54)

50.26 (41.37–60.31)

< 0.001

49.48 (40.21–59.92)

 LDL-C (mg/dL)

109.41 (89.30–131.44)

118.30 (96.26–142.66)

< 0.001

114.05 (93.17–137.24)

 BMI (Kg/m2)

23.0 (3.56)

24.1 (3.94)

< 0.001

23.6 (3.81)

 Waist Circumference (cm)

84.1 (11.83)

84.8 (12.81)

0.044

84.5 (12.37)

 Uric Acid (mg/dL)

4.88 (1.233)

3.98 (1.042)

< 0.001

4.40 (1.221)

 Creatinine (mg/dL)

0.87 (0.189)

0.69 (0.136)

< 0.001

0.77 (0.186)

 FPG (mmol/L)

6.10 (1.931)

6.12 (1.925)

0.686

6.11 (1.928)

 TG (mmmol/L)

1.43 (1.147)

1.55 (1.025)

< 0.001

1.50 (1.085)

 TyG*

6.33 (0.669)

6.44 (0.643)

< 0.001

6.39 (0.658)

Follow-up (2015)

 Current smoking, n (%)

1392 (52.3)

167 (5.5)

< 0.001

1559 (27.2)

 Drinking ≥1 times/month, n (%)

1187 (44.6)

243 (7.9)

< 0.001

1430 (25.0)

 SBP (mmHg)

130.5 (19.73)

129.4 (20.23)

0.032

129.9 (20.00)

 DBP (mmHg)

76.3 (11.35)

74.7 (10.89)

< 0.001

75.4 (11.13)

 HR*

73.3 (11.19)

74.3 (10.19)

0.001

73.8 (10.68)

 HDL-C

48.26 (41.70–56.70)

51.35 (44.79–58.69)

< 0.001

50.19 (43.24–57.92)

 LDL-C

96.52 (79.54–115.06)

105.79 (86.49–123.94)

< 0.001

101.54 (83.01–120.08)

 BMI (Kg/m2)

23.2 (3.73)

24.3 (4.24)

< 0.001

23.8 (4.05)

 Waist Circumference (cm)

84.3 (13.80)

85.7 (13.41)

< 0.001

85.0 (13.61)

 Uric Acid (mg/dL)

5.46 (1.419)

4.48 (1.215)

< 0.001

4.94 (1.403)

 Creatinine (mg/dL)

0.92 (0.304)

0.72 (0.207)

< 0.001

0.81 (0.275)

 FPG (mmol/L)

5.75 (1.997)

5.82 (2.022)

0.207

5.79 (2.010)

 TG (mmmol/L)

1.51 (0.996)

1.73 (1.044)

< 0.001

1.62 (1.028)

 TyG

6.34 (0.643)

6.50 (0.627)

< 0.001

6.43 (0.640)

  1. Abbreviations: UA uric acid, WC waist circumference, TyG triglyceride-glucose, SBP systolic blood pressure, DBP diastolic blood pressure, HR heart rate, BMI body mass index, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, TG Triglycerides, FPG fasting blood glucose
  2. TyG = ln [fasting TG (mmol/L) * FPG (mmol/L) *0.5*159.37]
  3. BMI = Weight (kg)/height (m)2