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Table 1 Baseline characteristics of the study population

From: Association of haemoglobin glycation index with outcomes in patients with acute coronary syndrome: results from an observational cohort study in China

Variable

Total population

Quintile 1

Quintile 2

Quintile 3

Quintile 4

Quintile 5

p value

n = 11,004

n = 2199

n = 2202

n = 2201

n = 2201

n = 2201

Median HGI (range)

−0.196 (−7.188, 7.875)

−0.906 (−7.188, −0.663)

−0.491 (−0.663, −0.343)

−0.196 (−0.342, −0.039)

0.170 (−0.039, 0.485)

1.156 (0.485, 7.875)

 < 0.001

Age, years

64.88 ± 10.92

62.59 ± 11.45

64.10 ± 10.97

65.71 ± 10.58

66.61 ± 10.446

65.40 ± 10.71

 < 0.001

Male gender

7227 (65.7%)

1640 (74.6%)

1549 (70.3%)

1381 (62.7%)

1342 (61.0%)

1315 (59.7%)

 < 0.001

Medical history

 Current/ex-Smoker

6220 (56.5%)

1372 (62.4%)

1292 (58.7%)

1181 (53.7%)

1174 (53.3%)

1201 (54.6%)

 < 0.001

 Hypertension

7775 (70.7%)

1442 (65.6%)

1503 (68.3%)

1527 (69.4%)

1647 (74.8%)

1656 (75.2%)

 < 0.001

 Diabetes

4157 (37.8%)

527 (24.0%)

390 (17.7%)

515 (23.4%)

961 (43.7%)

1764 (80.1%)

 < 0.001

 Dyslipidemia

5216 (47.4%)

999 (45.4%)

985 (44.7%)

1045 (47.5%)

1084 (49.3%)

1103 (50.1%)

0.001

 Previous Stroke

1899 (17.3%)

321 (14.6%)

358 (16.3%)

379 (17.2%)

392 (17.8%)

449 (20.4%)

 < 0.001

 Previous MI

1122 (10.2%)

179 (8.1%)

217 (9.9%)

196 (8.9%)

246 (11.2%)

284 (12.9%)

 < 0.001

 Past PCI

1589 (14.4%)

221 (10.1%)

281 (12.8%)

300 (13.6%)

359 (16.3%)

428 (19.4%)

 < 0.001

 Past CABG

252 (2.3%)

23 (1.0%)

44 (2.0%)

37 (1.7%)

65 (3.0%)

83 (3.8%)

 < 0.001

Physical examination

 BMI, kg/m2

25.80 ± 3.59

25.60 ± 3.50

25.71 ± 3.62

25.69 ± 3.65

25.85 ± 3.60

26.14 ± 3.57

 < 0.001

 SBP, mmHg

131.43 ± 19.37

129.71 ± 20.77

130.38 ± 18.76

131.25 ± 18.24

132.70 ± 19.24

133.11 ± 19.55

 < 0.001

 DBP, mmHg

75.35 ± 11.89

75.72 ± 12.86

75.37 ± 11.77

75.08 ± 11.40

75.51 ± 11.72

75.08 ± 11.65

0.517

 Heart rate, bpm

72.19 ± 13.14

73.83 ± 14.48

71.76 ± 12.90

70.46 ± 12.00

71.36 ± 12.81

73.54 ± 13.10

 < 0.001

Clinical presentation

 STEMI

1950 (17.7%)

715 (36.7%)

394 (20.2%)

305 (15.6%)

266 (13.6%)

270 (13.8%)

 < 0.001

 NSTEMI

1890 (17.2%)

420 (22.2%)

364 (19.3%)

338 (17.9%)

358 (18.9%)

410 (21.7%)

 < 0.001

 UAP

7164 (65.1%)

1064 (14.9%)

1444 (20.2%)

1558 (21.7%)

1577 (22.0%)

1521 (21.2%)

 < 0.001

Medication on admission

 Antiplatelet agent

4002 (36.4%)

668 (30.4%)

791 (35.9%)

832 (37.8%)

855 (38.8%)

856 (38.9%)

 < 0.001

 ACEI/ARB

3777 (34.3%)

624 (28.4%)

673 (30.6%)

772 (35.1%)

851 (38.7%)

857 (38.9%)

 < 0.001

 Beta-blocker

2443 (22.2%)

385 (17.5%)

474 (21.5%)

495 (22.5%)

562 (25.5%)

527 (23.9%)

 < 0.001

 Statins

3434 (31.2%)

513 (23.3%)

640 (29.1%)

725 (32.9%)

766 (34.8%)

790 (35.9%)

 < 0.001

Laboratory data

 WBC, 109/L

7.20 ± 2.46

7.74 ± 2.98

7.08 ± 2.52

6.91 ± 2.24

6.97 ± 2.08

7.29 ± 2.28

 < 0.001

 Hemoglobin, g/L

135.00 ± 11.00

138.00 ± 24.00

137.00 ± 21.00

134.00 ± 21.00

133.00 ± 23.00

133.00 ± 24.00

 < 0.001

 Hs-CRP, mg/L

2.39 ± 4.25

2.99 ± 9.55

2.15 ± 5.77

2.10 ± 5.82

2.28 ± 5.72

2.63 ± 5.81

 < 0.001

 RBG at admission, mmol/L

7.63 ± 2.07

7.26 ± 2.95

6.83 ± 2.91

6.91 ± 3.14

7.85 ± 3.44

10.63 ± 6.14

 < 0.001

 FPG, mmol/L

5.54 ± 1.35

5.77 ± 2.19

5.21 ± 1.06

5.16 ± 1.24

5.50 ± 1.85

6.94 ± 3.58

 < 0.001

 HbA1c,%

6.10 ± 0.90

5.40 ± 0.70

5.60 ± 0.50

5.90 ± 0.50

6.40 ± 0.80

8.10 ± 2.00

 < 0.001

 Albumin, g/L

38.75 ± 3.97

38.66 ± 4.09

38.84 ± 3.80

38.92 ± 3.88

38.88 ± 3.97

38.46 ± 4.10

0.217

 Creatinine, umol/L

87.36 ± 70.73

90.97 ± 76.07

85.52 ± 61.95

83.41 ± 53.69

90.45 ± 86.61

86.44 ± 70.51

 < 0.001

 eGFR, ml/min/1.73m2

82.91 ± 22.32

83.80 ± 23.25

84.09 ± 20.86

82.89 ± 20.75

81.01 ± 22.69

82.75 ± 23.76

0.001

 TC, mmol/L

4.28 ± 1.06

4.33 ± 1.01

4.28 ± 1.04

4.33 ± 1.07

4.22 ± 1.05

4.24 ± 1.11

 < 0.001

 TGs, mmol/L

1.37 ± 0.36

1.39 ± 0.97

1.32 ± 0.90

1.34 ± 0.93

1.36 ± 0.91

1.45 ± 1.07

 < 0.001

 LDL-C, mmol/L

2.43 ± 0.76

2.47 ± 0.74

2.43 ± 0.76

2.44 ± 0.77

2.38 ± 0.75

2.41 ± 0.78

0.001

 HDL-C, mmol/L

1.08 ± 0.26

1.08 ± 0.27

1.09 ± 0.27

1.11 ± 0.27

1.08 ± 0.26

1.04 ± 0.25

 < 0.001

Echocardiography

 LVEF

0.65 ± 0.05

0.64 ± 0.11

0.66 ± 0.09

0.66 ± 0.07

0.66 ± 0.08

0.65 ± 0.09

 < 0.001

Angiography findings

 LM/three-vessel

5995 (54.5%)

1161 (52.8%)

1133 (51.5%)

1091 (49.6%)

1209 (54.9%)

1401 (63.7%)

 < 0.001

 Proximal LAD

4688 (42.6%)

944 (42.9%)

935 (42.5%)

896 (40.7%)

926 (42.1%)

987 (44.8%)

0.087

Medication during hospitalization

 PCI/CABG

6229 (56.6%)

1352 (61.5%)

1205 (54.7%)

1172 (53.2%)

1182 (53.7%)

1318 (59.9%)

 < 0.001

 Antiplatelet agent

10,317 (93.8%)

2060 (93.7%)

2064 (93.7%)

2074 (94.2%)

2071 (94.1%)

2048 (93.0%)

0.528

 ACEI/ARB

6075 (55.2%)

1234 (56.1%)

1171 (53.2%)

1158 (52.6%)

1243 (56.5%)

1269 (57.7%)

0.002

 Beta-blocker

7509 (68.2%)

1519 (69.1%)

1482 (67.3%)

1426 (64.8%)

1495 (67.9%)

1587 (72.1%)

 < 0.001

 Statins

9907 (90.0%)

1932 (87.9%)

2002 (90.9%)

1994 (90.6%)

1992 (90.5%)

1987 (90.3%)

0.005

Hypoglycemic agents

 Alpha-glucosidase inhibitor

2529 (23.0%)

316 (14.4%)

224 (10.2%)

290 (13.2%)

592 (26.9%)

1107 (50.3%)

 < 0.001

 Metformin

1514 (13.8%)

136 (6.2%)

129 (5.9%)

171 (7.8%)

360 (16.4%)

718 (32.6%)

 < 0.001

 Sulfonylurea

857 (7.8%)

95 (4.3%)

54 (2.5%)

100 (4.5%)

202 (9.2%)

406 (18.4%)

 < 0.001

 DPP-4i

31 (0.3%)

3 (0.1%)

2 (0.1%)

2 (0.1%)

5 (0.2%)

19 (0.9%)

 < 0.001

 Insulin

924 (8.4%)

114 (5.2%)

54 (2.5%)

62 (2.8%)

129 (5.9%)

565 (25.7%)

 < 0.001

 Insulin sensitizer

267 (2.4%)

32 (1.5%)

22 (1.0%)

30 (1.4%)

60 (2.7%)

123 (5.6%)

 < 0.001

  1. HGI hemoglobin glycation index, MI myocardial infarction, PCI percutaneous coronary intervention, CABG Coronary Artery Bypass Grafting, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, STEMIST-elevated myocardial infarction, NSTEMI non-ST elevated myocardial infarction, UAP unstable angina pectoris, ACEI angiotensin-converting enzyme inhibitors, ARB angiotensin receptor blockers, WBC white blood cells, Hs-CRPHypersensitive c-reactive protein, RBG random blood glucose, FPG fast plasma glucose, eGFR estimated glomerular filtration rate, TC total cholesterol, TGs triacylglycerol, LDL-C low density lipoprotein cholesterol, HDL-C high density lipoprotein cholesterol, LVEF left ventricular ejection fraction, LM left main vessel, LAD left anterior descending artery, DPP-4i dipeptidyl peptidase-4 inhibitors