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Table 2 Baseline characteristics of the whole study group, the CIN and the No-CIN groups

From: Predictive value of CHA2DS2VASC score for contrast-induced nephropathy after primary percutaneous coronary intervention for patients presenting with acute ST-segment elevation myocardial infarction

 

All study group (n = 500)

CIN group (n = 35)

No-CIN group (n = 465)

P value

Age (years)

54.58 ± 10.23

65.23 ± 7.24

53.77 ± 9.97

< 0.001

Male gender

425 (85%)

27 (77.14%)

398 (85.59%)

0.215

Diabetes mellitus

226 (45.2%)

23 (65.71%)

203 (43.66%)

0.013

Hypertension

284 (56.8%)

26 (74.29%)

258 (55.48%)

0.034

Dyslipidemia

460 (92.00%)

35 (100%)

425 (91.4%)

0.098

Prior stroke or TIA

10 (2.00%)

5 (14.29%)

5 (1.08%)

< 0.001

Abnormal kidney functions*

44 (8.80%)

11 (31.43%)

53 (11.4%)

0.002

Smoking

406 (81.20%)

27 (77.14%)

379 (81.51%)

0.505

NYHA III/IV

36 (7.20%)

11(31.43%)

25 (5.37%)

< 0.001

Killip class I

421 (84.2%)

16 (45.71%)

405 (87.1%)

< 0.001

Killip class II

56 (11.2%)

6 (17.14%)

50 (10.75%)

0.263

Killip class III

23 (4.6%)

13 (37.14%)

10 (2.15%)

< 0.001

Anterior STEMI

384 (76.80%)

29 (82.86%)

355 (76.34%)

0.456

Lateral STEMI

20 (4%)

0 (0%)

20 (4.30%)

Inferior STEMI

96 (19.20%)

6 (17.14%)

90 (19.3%)

Final TIMI flow II

6 (1.20%)

0 (0%)

6 (1.29%)

1.000

Final TIMI flow III

494 (98.80%)

35 (100%)

459 (98.71%)

Total ischemic time (min)$

76.37 ± 30.38

116.57 ± 50.5

73.74 ± 29.33

< 0.001

CMV

213.26 ± 45.90

262.57 ± 48.77

209.55 ± 43.52

0.001

CMV/eGFR ratio

2.45 ± 0.97

3.92 ± 1.77

2.34 ± 0.78

< 0.001

Hematocrit

43.11 ± 5.94

42.81 ± 5.82

44.07 ± 6

0.76

RBG

144.66 ± 37.20

163.86 ± 43.57

143 ± 36.31

0.09

Baseline serum creatinine

0.91 ± 0.20

1.07 ± 0.33

0.89 ± 0.18

< 0.001

eGFR (mL/min/1/73 m2)

88.45 ± 24

69.66 ± 15.91

89.86 ± 23.91

< 0.001

LVEF

50.60 ± 8.59

48.83 ± 7.12

50.73 ± 8.67

0.169

Moderate/severe MR

18 (3.6%)

4 (11.43%)

14 (3.01%)

0.035

CHA2DS2 VASC score

2 [1, 2]

4 [4, 5]

1 [1, 2]

< 0.001

Mehran score

3 [2–5]

10 [10–14]

2 [2–5]

< 0.001

  1. Continuous data are expressed as mean ± (standard deviation) or median [inter-quartile range] as appropriate, while categorical data are expressed as frequency (percentage)
  2. CIN contrast-induced nephropathy, CMV contrast media volume, eGFR estimated glomerular filtration rate, LVEF left ventricular ejection fraction, NYHA New York heart failure, RBG,random blood glucose, TIA transient ischemic attack, TIMI,thrombolysis in myocardial infarction
  3. *Baseline serum creatinine above the normal range (1.2 mg/dL), yet eGFR remains > 40 mL/min/1.73 m2
  4. $Representing time from symptoms onset to time of restoring flow in the culprit artery