Table 1 Characteristics of the study participants.

From: Relationship between serum albumin level and hospitalization duration following percutaneous coronary intervention for acute coronary syndrome

Characteristics

Q1

Q2

Q3

Q4

P-value

N

85

85

88

87

 

Primary outcome

 Length of hospitalization, days

6.4 ± 4.2

5.4 ± 2.0

4.8 ± 1.8

5.1 ± 1.9

0.013

Demographics

 Age, years

62.2 ± 12.3

60.9 ± 10.9

55.1 ± 11.4

53.9 ± 11.9

< 0.001

 Female, n (%)

16 (18.8%)

16 (19.0%)

12 (13.6%)

12 (13.8%)

0.632

 Cardiovascular risk factors

     

 Hypertension, n (%)

42 (53.2%)

47 (56.0%)

47 (56.0%)

42 (50.0%)

0.846

 Diabetes mellitus, n (%)

19 (24.1%)

25 (29.8%)

25 (29.8%)

22 (26.2%)

0.807

 Hypertriglyceridemia, n (%)

16 (20.3%)

23 (27.4%)

26 (31.0%)

26 (31.0%)

0.379

 Smoking, n (%)

47 (59.5%)

53 (63.1%)

60 (71.4%)

60 (71.4%)

0.261

Other past disorders

 OMI, n (%)

1 (1.3%)

2 (2.4%)

1 (1.2%)

5 (6.0%)

0.193

 CRF, n (%)

1 (1.3%)

3 (3.6%)

1 (1.2%)

2 (2.4%)

0.680

 Stroke, n (%)

3 (3.8%)

7 (8.3%)

4 (4.8%)

8 (9.5%)

0.389

 CHF, n (%)

1 (1.3%)

1 (1.2%)

0 (0.0%)

2 (2.4%)

0.573

 History of PCI, n (%)

0 (0.0%)

3 (3.6%)

3 (3.6%)

6 (7.1%)

0.114

Laboratory tests

 WBC,109/L

9.9 ± 3.4

9.7 ± 3.0

9.8 ± 3.8

10.0 ± 3.5

0.958

 PLT,109/L

211.4 ± 70.4

226.3 ± 60.4

245.7 ± 67.3

252.4 ± 58.6

< 0.001

 HGB, g/L

139.5 ± 18.6

144.3 ± 18.9

145.6 ± 17.9

152.0 ± 15.8

< 0.001

 Hs-CRP, mg/L

17.5 ± 50.9

11.8 ± 39.9

9.1 ± 25.6

4.9 ± 13.0

0.135

 K+, mmol/L

4.0 ± 0.4

4.0 ± 0.3

4.0 ± 0.3

4.0 ± 0.4

0.929

 BG, mmol/L

9.5 ± 5.1

8.9 ± 4.0

8.1 ± 3.6

8.3 ± 4.6

0.156

 CTnI, ng/mL

2.6 ± 5.9

1.8 ± 4.7

1.3 ± 3.0

1.9 ± 5.3

0.313

 ALB, g/L

34.5 ± 2.1

38.6 ± 0.8

41.1 ± 0.7

44.9 ± 2.1

< 0.001

 LDL-C, mmol/L

3.0 ± 1.1

2.9 ± 0.9

3.8 ± 5.2

3.2 ± 1.2

0.093

 HDL-C, mmol/L

1.0 ± 0.2

1.2 ± 1.2

1.0 ± 0.3

1.1 ± 0.2

0.305

 LVEF, %

57.4 ± 7.0

57.8 ± 9.7

58.9 ± 8.9

56.7 ± 10.3

0.302

Criminal Vessels

    

0.044

 LM, n (%)

2 (2.4%)

2 (2.4%)

1 (1.1%)

1 (1.1%)

 

 LAD, n (%)

37 (43.5%)

40 (47.1%)

56 (63.6%)

56 (64.4%)

 

 LCX, n (%)

8 (9.4%)

13 (15.3%)

12 (13.6%)

9 (10.3%)

 

 RCA, n (%)

38 (44.7%)

30 (35.3%)

19 (21.6%)

21 (24.1%)

 

 IVUS, n (%)

61 (71.8%)

50 (58.8%)

55 (62.5%)

54 (62.8%)

0.341

 IABP, n (%)

11 (12.9%)

5 (5.9%)

1 (1.1%)

1 (1.1%)

0.001

  1. OR odds ratio, CI confidence interval, OMI old myocardial infarction, CRF chronic renal failure, CHF chronic heart failure, PCI percutaneous coronary intervention, WBC white blood cell, PLT blood platelet, HGB hemoglobin, Hs-CRP hypersensitive C-reactive protein, BG blood glucose, CTnI cardiac troponin I, ALB serum albumin, LDL-C low-density lipoprotein cholesterol, HDL-C high-density lipoprotein cholesterol, LVEF left ventricular ejection fraction, LM left main coronary, LAD left anterior descending coronary, LCX left circumflex artery, RCA right coronary artery, IVUS intravascular ultrasound, IABP intra-aortic balloon pump.
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