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Table 1 Baseline characteristics of participants stratified by Quartiles of TyG index

From: Positive association of triglyceride-glucose index with new-onset hypertension among adults: a national cohort study in China

Characteristics

Overall

Quartiles of TyG index

Q1 (≤ 8.1)

Q2 (> 8.1 to 8.5)

Q3 (> 8.5 to 9.0)

Q4 (> 9.0)

P value

n

4600

1150

1150

1150

1150

 

TyG index

8.6 (0.7)

7.8 (0.2)

8.3 (0.1)

8.7 (0.1)

9.5 (0.5)

 < 0.001

Age, years

48.1 (13.6)

45.2 (14.2)

48.1 (14.1)

49.2 (12.8)

50.0 (12.6)

 < 0.001

Male (%)

2058 (44.7)

483 (42.0)

475 (41.3)

494 (43.0)

606 (52.7)

 < 0.001

SBP, mmHg

116.4 (11.2)

113.8 (11.6)

115.7 (11.1)

117.0 (11.2)

119.1 (10.2)

 < 0.001

DBP, mmHg

76.0 (7.5)

74.5 (7.8)

75.2 (7.6)

76.3 (7.4)

77.8 (6.9)

 < 0.001

BMI, kg/m2

22.9 (3.2)

21.6 (2.7)

22.3 (3.0)

23.2 (3.1)

24.3 (3.2)

 < 0.001

WHR

0.87 (0.08)

0.85 (0.08)

0.86 (0.08)

0.87 (0.10)

0.89 (0.07)

 < 0.001

Smoking, n (%)

1286 (28.0)

292 (25.4)

313 (27.2)

305 (26.5)

376 (32.7)

 < 0.001

Drinking, n (%)

1480 (32.2)

353 (30.7)

333 (29.0)

365 (31.7)

429 (37.3)

 < 0.001

Urban residence, n (%)

1335 (29.0)

251 (21.8)

318 (27.7)

351 (30.5)

415 (36.1)

 < 0.001

Region*, n (%)

     

0.011

 North

1894 (41.2)

505 (43.9)

455 (39.6)

438 (38.1)

496 (43.1)

 

 South

2706 (58.8)

645 (56.1)

695 (60.4)

712 (61.9)

654 (56.9)

 

Education, n (%)

     

0.062

 Illiteracy

937 (20.4)

218 (19.0)

232 (20.2)

259 (22.5)

228 (19.8)

 

 Primary school

927 (20.2)

238 (20.7)

232 (20.2)

211 (18.3)

246 (21.4)

 

 Middle school

2169 (47.2)

554 (48.2)

548 (47.7)

557 (48.4)

510 (44.3)

 

 High school or above

567 (12.3)

140 (12.2)

138 (12.0)

123 (10.7)

166 (14.4)

 

Occupation, n (%)

     

 < 0.001

 Farmer

1420 (30.9)

424 (36.9)

367 (31.9)

351 (30.5)

278 (24.2)

 

 Worker

1284 (27.9)

332 (28.9)

337 (29.3)

307 (26.7)

308 (26.8)

 

 Unemployed

1674 (36.4)

341 (29.7)

405 (35.2)

426 (37.0)

502 (43.7)

 

 Others

222 (4.8)

53 (4.6)

41 (3.6)

66 (5.7)

62 (5.4)

 

Marital status

     

0.008

 Married

4033 (87.7)

1003 (87.2)

996 (86.6)

1034 (89.9)

1000 (87.0)

 

 Unmarried

236 (5.1)

76 (6.6)

68 (5.9)

44 (3.8)

48 (4.2)

 

 Widowed

239 (5.2)

51 (4.4)

58 (5.0)

53 (4.6)

77 (6.7)

 

 Others

92 (2.0)

20 (1.7)

28 (2.4)

19 (1.7)

25 (2.2)

 

Dietary intake, g/d

      

 Energy

2098.0 [1712.0, 2533.0]

2091.0 [1731.5, 2513.0]

2116.5 [1687.3, 2587.8]

2091.5 [1720.0, 2500.8]

2100.5 [1701.3, 2530.8]

0.962

 Fat

70.0 [50.0, 96.0]

69.0 [50.0, 95.0]

69.0 [50.0, 94.0]

70.0 [49.0, 97.0]

70.5 [50.0, 97.0]

0.809

 Carbohydrate

288.0 [229.0, 359.0]

289.0 [230.3, 359.0]

290.0 [229.0, 370.0]

287.0 [228.0, 358.8]

284.0 [228.0, 352.0]

0.385

 Protein

63.0 [51.0, 78.0]

63.0 [50.0, 78.0]

63.0 [50.0, 77.0]

63.0 [51.0, 78.0]

64.0 [51.0, 80.0]

0.334

Triglycerides, mmol/L

1.18 [0.81, 1.80]

0.64 [0.53, 0.74]

0.99 [0.88, 1.11]

1.44 [1.27, 1.64]

2.59 [2.12, 3.48]

 < 0.001

TC, mmol/L

4.69 [4.10, 5.37]

4.24 [3.77, 4.78]

4.60 [4.04, 5.21]

4.88 [4.30, 5.45]

5.19 [4.58, 5.93]

 < 0.001

LDL-C, mmol/L

2.85 [2.31, 3.45]

2.58 [2.13, 3.02]

2.87 [2.35, 3.40]

3.11 [2.56, 3.67]

2.96 [2.25, 3.68]

 < 0.001

HDL-C, mmol/L

1.40 [1.18, 1.64]

1.55 [1.36, 1.80]

1.46 [1.27, 1.71]

1.36 [1.19, 1.59]

1.19 [1.01, 1.41]

 < 0.001

hsCRP, mg/dL

1.00 [0.00, 2.00]

1.00 [0.00, 2.00]

1.00 [0.00, 2.00]

1.00 [0.00, 2.00]

1.00 [1.00, 3.00]

 < 0.001

Hemoglobin, g/L

140.4 (20.5)

136.5 (21.0)

139.4 (20.2)

140.7 (20.4)

144.9 (19.3)

 < 0.001

HbA1c, %

5.53 (0.80)

5.35 (0.50)

5.41 (0.53)

5.51 (0.62)

5.86 (1.23)

 < 0.001

FBG, mmol/L

5.28 (1.31)

4.74 (0.56)

5.01 (0.68)

5.26 (0.79)

6.10 (2.11)

 < 0.001

FBI, mmol/L

9.9 [7.1, 14.2]

8.0 [5.7, 10.9]

9.2 [7.0, 13.0]

10.5 [7.6, 14.6]

13.0 [9.0, 19.7]

 < 0.001

Total protein, g/L

77.08 (5.12)

76.44 (4.81)

76.89 (4.99)

77.83 (5.11)

77.16 (5.44)

 < 0.001

BUN, mmol/L

5.38 (1.47)

5.45 (1.59)

5.33 (1.50)

5.22 (1.38)

5.53 (1.40)

 < 0.001

Uric acid, μmol/L

284.0 [231.0, 346.3]

252.0 [206.3, 307.0]

266.5 [223.0, 320.0]

284.0 [236.0, 343.0]

341.0 [282.0, 417.0]

 < 0.001

eGFR, ml/min/1.73m2

81.1 (15.5)

84.6 (15.3)

80.8 (15.2)

79.3 (15.2)

80.0 (15.6)

 < 0.001

CKD, n (%)

350 (7.6)

52 (4.5)

94 (8.2)

101 (8.8)

103 (9.0)

 < 0.001

Diabetes mellitus, n (%)

350 (7.6)

15 (1.3)

33 (2.9)

69 (6.0)

233 (20.3)

 < 0.001

  1. Q quartile, TyG triglyceride-glucose, SMD standard mean difference, SBP systolic blood pressure, DBP diastolic blood pressure, BMI body mass index, WHR waist hip ratio, TC total cholesterol, LDL-C low density lipoprotein cholesterol, HDL-C high density lipoprotein cholesterol, hsCRP high sensitivity C reactive protein, HbA1c glycosylated hemoglobin A1c, FBG fasting blood glucose, FBI fasting blood insulin, BUN blood urea nitrogen, eGFR estimated glomerular filtration rate, CKD chronic kidney disease
  2. *Region was divided into north (Heilongjiang, Liaoning, Shandong, and Henan), and south (Jiangsu, Hubei, Hunan, Guizhou, and Guangxi) based on the Qinling Mountains-Huaihe River Line
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Cardiovascular Diabetology

ISSN: 1475-2840