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Table 1 Baseline characteristics of patients stratified by the TyG index tertiles

From: Association between triglyceride-glucose index and intracranial/extracranial atherosclerotic stenosis: findings from a retrospective study

Characteristics

Total

n = 1129

TyG index tertiles

p

Q1(n = 376)

Q2(n = 376)

Q3(n = 377)

General information

     

 Age [median (IQR)]

62 (55, 68)

64 (57, 70)

62 (55, 69)

60 (54, 65)

< 0.001

 Male sex [n (%)]

805 (71.30%)

288 (76.60%)

265 (70.48%)

252 (66.84%)

0.011

Past medical history

     

 Hypertension [n (%)]

778 (68.91%)

243 (64.63%)

265 (70.48%)

270 (71.62%)

0.085

 Diabetes [n (%)]

335 (29.67%)

56 (14.89%)

90 (23.94%)

189 (50.13%)

< 0.001

 Stroke [n (%)]

271 (24.00%)

98 (26.06%)

87 (23.14%)

86 (22.81%)

0.516

 Smoking [n (%)]

363 (32.15%)

123 (32.71%)

122 (32.45%)

118 (31.30%)

0.907

 Drinking [n (%)]

153 (13.55%)

44 (11.70%)

53 (14.10%)

56 (14.85%)

0.848

Laboratory tests

     

WBC, median (IQR), 109/L

6.36 (5.17, 7.68)

6.00 (5.00, 7.30)

6.42 (5.14, 7.66)

6.62 (5.43, 8.16)

< 0.001

Platelet, median (IQR), 109/L

199.00 (165.00, 237.00)

191.00 (163.00, 225.25)

206.00 (166.00, 243.25)

201.00 (167.00, 240.00)

0.003

 TC, mean (SD) mmol/L

4.15 (1.12)

3.80 (0.94)

4.11 (1.01)

4.54 (1.25)

< 0.001

 TG, median (IQR), mmol/L

1.40 (0.99, 1.89)

0.90 (0.74, 1.07)

1.48 (1.29, 1.70)

2.19 (1.74, 2.83)

< 0.001

 HDL, mean (SD), mmol/L

1.02 (0.25)

1.12 (0.26)

1.01 (0.23)

0.93 (0.21)

< 0.001

 LDL, mean (SD), mmol/L

2.55 (0.90)

2.33 (0.80)

2.59 (0.85)

2.72 (0.99)

< 0.001

 GLU, median (IQR), mmol/L

5.61 (4.98, 6.96)

5.02 (4.59, 5.56)

5.59 (5.06, 6.47)

7.37 (5.76, 9.87)

< 0.001

 TyG index

8.81 (8.40, 9.21)

8.23 (8.01, 8.40)

8.81 (8.68, 8.94)

9.41 (9.21, 9.80)

< 0.001

Stenosis location

    

< 0.001

 No stenosis [n (%)]

143 (12.67%)

61 (16.22%)

45 (11.97%)

37 (9.81%)

 

 ICAS [n (%)]

396 (35.08%)

126 (33.51%)

132 (35.11%)

138 (36.60%)

 

 ECAS [n (%)]

222 (19.66%)

93 (24.73%)

71 (18.88%)

58 (15.38%)

 

 Combined ICAS/ECAS [n (%)]

368 (32.60%)

96 (25.53%)

128 (34.04%)

144 (38.20%)

 

Stenosis distribution

    

0.110

 No stenosis [n (%)]

143 (12.67%)

61 (16.22%)

45 (11.97%)

37 (9.81%)

 

 Anterior circulation [n (%)]

403 (35.70%)

138 (36.70%)

134 (35.64%)

131 (34.75%)

 

 Posterior circulation [n (%)]

179 (15.85%)

51 (13.56%)

58 (15.43%)

70 (18.57%)

 

 Combined anterior/posterior circulation [n (%)]

404 (35.78%)

126 (33.51%)

139 (36.97%)

139 (36.87%)

 

Stenosis severity

    

0.118

 No stenosis [n (%)]

143 (12.67%)

61 (16.22%)

45 (11.97%)

37 (9.81%)

 

 Mild stenosis [n (%)]

199 (8.77%)

138 (36.70%)

30 (7.98%)

31 (8.22%)

 

 Moderate stenosis [n (%)]

139 (12.31%)

51 (13.56%)

46 (12.23%)

45 (11.94%)

 

 Severe stenosis [n (%)]

748 (66.25%)

126 (33.51%)

255 (67.82%)

264 (70.03%)

 

Stenosis symptom

    

0.098

 No stenosis [n (%)]

143 (12.67%)

61 (16.22%)

45 (11.97%)

37 (9.81%)

 

 Asymptomatic [n (%)]

318 (28.17%)

106 (28.19%)

102 (27.13%)

110 (29.18%)

 

 Symptomatic [n (%)]

668 (59.17%)

209 (55.59%)

229 (60.90%)

230 (61.01%)

 
  1. WBC white blood cell, TC total cholesterol, TG triglyceride, HDL high-density lipoprotein, LDL low-density lipoprotein, GLU fasting glucose, TyG index Triglyceride-glucose index, ICAS intracranial atherosclerotic stenosis, ECAS extracranial atherosclerotic stenosis, IQR interquartile range. p for comparisons between ICAS, ECAS and combined ICAS/ECAS. Bold means that the p value is significant