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Table 2 Baseline characteristic of the study population according to TyG quartiles

From: Triglyceride-glucose index in the prediction of new-onset arthritis in the general population aged over 45: the first longitudinal evidence from CHARLS

 

Total

(n = 4418)

Q1

(n = 1105)

Q2

(n = 1104)

Q3

(n = 1104)

Q4

(n = 1105)

P

Age, Median (P25, P75)

57 (50, 63)

57 (49, 64)

56 (50, 64)

57 (51, 63)

57 (50, 63)

0.97

Gender, n (%)

     

< 0.01

Female

2184 (49.43)

470 (42.53)

539 (48.82)

574 (51.99)

601 (54.39)

 

Male

2234 (50.57)

635 (57.47)

565 (51.18)

530 (48.01)

504 (45.61)

 

Marital, n (%)

     

0.27

Married

4005 (90.65)

989 (89.5)

1000 (90.58)

1015 (91.94)

1001 (90.59)

 

Non-Married

413 (9.35)

116 (10.5)

104 (9.42)

89 (8.06)

104 (9.41)

 

Education, n (%)

     

0.95

Elementary school and below

694 (62.81)

697 (63.13)

697 (63.13)

698 (63.17)

  

High school

1069 (24.2)

273 (24.71)

258 (23.37)

274 (24.82)

264 (23.89)

 

College and higher

563 (12.74)

138 (12.49)

149 (13.5)

133 (12.05)

143 (12.94)

 

Location, n (%)

     

0.02

Urban

4038 (91.4)

1031 (93.3)

1004 (90.94)

1013 (91.76)

990 (89.59)

 

Rural

380 (8.6)

74 (6.7)

100 (9.06)

91 (8.24)

115 (10.41)

 

Smoking, n (%)

     

< 0.01

Never

614 (55.57)

655 (59.33)

663 (60.05)

689 (62.35)

  

Former smoker

75 (6.79)

81 (7.34)

90 (8.15)

89 (8.05)

  

Current smoker

1462 (33.09)

416 (37.65)

368 (33.33)

351 (31.79)

327 (29.59)

 

Drinking, n (%)

     

0.04

None of these

2829 (64.03)

675 (61.09)

701 (63.5)

751 (68.03)

702 (63.53)

 

Drink but less than once a month

377 (8.53)

97 (8.78)

101 (9.15)

87 (7.88)

92 (8.33)

 

Drink more than once a month

1212 (27.43)

333 (30.14)

302 (27.36)

266 (24.09)

311 (28.14)

 

Sleep time, Median (P25, P75)

7 (6, 8)

7 (6, 8)

7 (5, 8)

7 (6, 8)

7 (6, 8)

0.07

Diabetes, n (%)

524 (11.86)

33 (2.99)

49 (4.44)

123 (11.14)

319 (28.87)

< 0.01

Hypertension, n (%)

1725 (39.04)

335 (30.32)

390 (35.33)

455 (41.21)

545 (49.32)

< 0.01

BMI, Median (P25, P75)

23.07 (20.92, 25.36)

21.94 (20.19, 23.88)

22.89 (20.83, 24.84)

23.18 (21.16, 25.62)

24.28 (21.95, 26.59)

< 0.01

Glucose(mg/dl), Median (P25, P75)

101.88(94.14,111.24)

95.58(88.74,102.78)

99.81 (93.78, 106.24)

102.78 (96.12, 111.06)

112.5 (102.24, 129.24)

< 0.01

TG (mg/dl), Median (P25, P75)

101.78(73.46, 152)

60.18 (51.33, 68.14)

86.73 (77.88, 96.46)

124.34 (108.86, 140.71)

200.9 (169.92, 252.23)

< 0.01

HDL-C(mg/dl), Median (P25, P75)

49.10 (40.21, 59.92)

58.38 (49.48, 68.04)

52.19 (44.85, 61.47)

46.78 (39.43, 55.28)

39.82 (33.63, 47.55)

< 0.01

LDL-C(mg/dl), Median (P25, P75)

114.05 (93.56, 135.7)

107.09 (88.92,126.42)

115.98 (98.58, 136.47)

119.46 (99.65, 140.34)

112.5 (89.3, 140.34)

< 0.01

CRP (mg/dl), Median (P25, P75)

0.92 (0.5, 1.82)

0.74 (0.44, 1.54)

0.78 (0.46, 1.59)

1.00 (0.55, 1.95)

1.22 (0.66, 2.18)

< 0.01

Arthritis, n (%)

396 (8.96)

84 (7.6)

99 (8.97)

98 (8.88)

115 (10.41)

0.15

  1. Note: p-Values were calculated from chi-square tests (categorical variables) or rank-sum tests (continuous variables without normal distribution), or anova (continuous variables with normal distribution)
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Lipids in Health and Disease

ISSN: 1476-511X