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Table 1 Clinical characteristics of participants grouped by AIP quartiles Mean + SD/N(%)

From: The relationship between the atherogenic index of plasma and arterial stiffness in essential hypertensive patients from China: a cross-sectional study

Characteristics

Overall

Quartiles of AIP

Q1 (≥ − 0.87, <  − 0.20)

Q2 (− 0.20, <  − 0.01)

Q3 (≥ − 0.01, < 0.18)

Q4 (≥ 0.18, ≤ 0.94)

P − value

N

4744

1184

1187

1187

1186

 

Age (year)

64.50 ± 9.40

66.89 ± 9.11

65.67 ± 9.16

63.75 ± 9.17

61.68 ± 9.32

 < 0.001

Male (n%)

2366 (49.87%)

716 (60.47%)

576 (48.53%)

506(42.63%)

568(47.89%)

 < 0.001

BMI (kg/m2)

23.25 ± 3.48

21.38 ± 3.09

22.72 ± 3.31

24.10 ± 3.40

24.81 ± 3.08

 < 0.001

Waist circumference (cm)

82.13 ± 9.54

76.46 ± 8.89

80.76 ± 9.18

84.49 ± 8.81

86.80 ± 7.87

 < 0.001

Heart rate (bpm)

75.67 ± 14.48

74.51 ± 15.59

74.92 ± 14.29

75.51 ± 13.31

77.73 ± 14.43

 < 0.001

SBP (mmHg)

147.10 ± 17.55

147.45 ± 17.90

147.29 ± 17.63

147.15 ± 17.51

146.53 ± 17.14

0.600

DBP (mmHg)

88.79 ± 10.90

87.63 ± 11.10

88.21 ± 10.95

88.92 ± 10.62

90.40 ± 10.75

 < 0.001

Fasting blood glucose; (mmol/L)

6.09 ± 1.55

5.82 ± 1.18

5.97 ± 1.57

6.11 ± 1.41

6.46 ± 1.88

 < 0.001

Total cholesterol (mmol/L)

5.14 ± 1.10

5.01 ± 1.01

5.10 ± 1.11

5.29 ± 1.08

5.17 ± 1.17

 < 0.001

Total triglyceride (mmol/L)

1.65 ± 0.92

0.83 ± 0.21

1.22 ± 0.26

1.68 ± 0.36

2.86 ± 0.92

 < 0.001

HDL-c (mmol/L)

1.50 ± 0.39

1.86 ± 0.40

1.55 ± 0.30

1.40 ± 0.27

1.20 ± 0.26

 < 0.001

LDL-c (mmol/L)

2.94 ± 0.79

2.57 ± 0.66

2.89 ± 0.77

3.15 ± 0.77

3.15 ± 0.80

 < 0.001

AIP

 − 0.00 ± 0.28

 − 0.35 ± 0.11

 − 0.11 ± 0.05

0.08 ± 0.06

0.37 ± 0.14

 < 0.001

baPWV (m/s)

18.09 ± 3.88

18.19 ± 4.11

18.15. ± 4.04

18.07 ± 3.74

17.93 ± 3.59

0.374

eGFR (ml/min/1.73 m2)

86.23 ± 19.47

85.54 ± 19.23

84.75 ± 19.95

87.08 ± 18.50

87.53 ± 20.04

0.001

Serum uric acid (μmol/L)

430.57 ± 120.56

412.75 ± 117.50

415.11 ± 110.06

432.43 ± 120.35

461.97 ± 127.37

 < 0.001

Homocysteine (μmol/L)

18.49 ± 11.62

18.57 ± 11.14

18.94 ± 12.13

18.19 ± 11.43

18.25 ± 11.75

0.004

Self-reported diabetes (n%)

373 (7.86%)

52 (4.39%)

74 (6.23%)

108 (9.10%)

139 (11.72%)

 < 0.001

Coronary artery disease (n%)

292 (6.16%)

66 (5.57%)

78 (6.57%)

79 (6.66%)

69 (5.82%)

0.616

Stroke (n%)

305 (6.43%)

54 (4.56%)

87 (7.33%)

95 (8.00%)

69 (5.82%)

0.003

Current smoking (n%)

1351 (28.48%)

414 (34.97%)

347 (29.23%)

278 (23.42%)

312 (26.31%)

 < 0.001

Current drinking (n%)

1178 (24.83%)

397 (33.53%)

278 (23.42%)

237 (19.97%)

266 (22.43%)

 < 0.001

Labor intensity (n%)

     

 < 0.001

 Light

2570 (54.17%)

590 (49.83%)

646 (54.42%)

659 (55.52%)

675 (56.91%)

 

 Medium

1095 (23.08%)

277 (23.40%)

273 (23.00%)

259 (21.82%)

286 (24.11%)

 

 Heavy

1079 (22.74%)

317 (26.77%)

268 (22.58%)

269 (22.66%)

225 (18.97%)

 

Antihypertensive drugs n (%)

2857 (60.22%)

648 (54.73%)

710 (59.81%)

757 (63.77%)

742 (62.56%)

 < 0.001

Hypoglycemic drugs n (%)

187 (3.94%)

22 (1.86%)

39 (3.29%)

57 (4.80%)

69 (5.82%)

 < 0.001

Antiplatelet drugs n (%)

104 (2.19%)

17 (1.44%)

32 (2.70%)

24 (2.02%)

31 (2.61%)

0.127

  1. Values are presented as the mean ± SD or number (%)
  2. AIP, the atherogenic index of plasma; BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure; baPWV, brachial-ankle pulse wave velocity; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; eGFR, estimated glomerular filtration rate