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Table 1 Baseline characteristics of the study population

From: Influence of age on the effect of reduced renal function on outcomes in patients with coronary artery disease

Characteristics

Age ≤ 59 yrs

Age 60 to 69 yrs

Age ≥ 70 yrs

No. of patients

eGFR < 60 ml/min

eGFR ≥60 ml/min

eGFR < 60 ml/min

eGFR ≥60 ml/min

eGFR < 60 ml/min

eGFR ≥60 ml/min

 

n = 54

n = 863

n = 150

n = 833

n = 303

n = 799

Age, yrs

54.3 ± 4.7

51.4 ± 6.5

65.3 ± 2.7

64.7 ± 2.8

75.6 ± 4.1

74.8 ± 3.8

Gender, female, n (%)

9 (16.7)

84 (9.7)

47 (31.3)

171 (20.5)

106 (35.0)

198 (24.8)

BMI, kg/m2

24.9 ± 3.0

24.7 ± 3.0

24.3 ± 3.5

24.2 ± 3.1

24.0 ± 3.1

23.8 ± 3.5

Medical history

 Pre-hypertension, n (%)

37 (71.2)

360 (41.8)

110 (73.8)

471 (56.6)

218 (72.4)

501 (63.0)

 Pre-diabetes mellitus, n (%)

11 (21.2)

131 (15.2)

48 (32.0)

188 (22.7)

100 (33.2)

204 (25.6)

At admission

 Systolic blood pressure, mm Hg

130.4 ± 29.4

126.1 ± 21.9

134.4 ± 25.0

130.8 ± 22.0

131.2 ± 23.0

133.7 ± 21.4

 Diastolic blood pressure, mm Hg

79.2 ± 20.8

79.0 ± 13.0

77.1 ± 13.7

76.3 ± 11.7

72.2 ± 12.1

74.7 ± 11.8

 Heart rate, beats/min

79.0 ± 19.7

73.7 ± 13.2

77.6 ± 16.7

73.4 ± 13.4

75.1 ± 14.9

73.6 ± 13.8

 Killip classification ≥ II, n (%)

13 (24.1)

68 (7.9)

21 (16.0)

77 (9.2)

59 (19.5)

107 (13.4)

Laboratory values

 eGFR, ml/min/1.73m2

44.8 ± 13.6

93.7 ± 19.3

45.6 ± 13.1

85.5 ± 17.8

46.0 ± 11.7

80.4 ± 15.9

 Blood glucose, mmol/L

8.8 ± 5.1

6.7 ± 2.8

8.1 ± 6.0

7.9 ± 3.0

7.7 ± 3.8

7.0 ± 2.8

 Total cholesterol, mmol/L

3.9 ± 1.4

4.2 ± 1.3

4.1 ± 1.2

4.0 ± 1.1

4.0 ± 1.0

4.0 ± 1.0

Severity of CAD

 Left main artery, n (%)

2 (3.7)

32 (3.7)

10 (6.7)

44 (5.3)

19 (6.3)

54 (6.8)

 Three vessel diseases, n (%)

19 (35.2)

163 (18.9)

57 (38.0)

178 (21.4)

101 (33.3)

245 (30.7)

Diagnosis of ACS, n (%)

34 (63.0)

603 (69.9)

114 (76.0)

617 (74.1)

235 (77.6)

571 (71.5)

Treatment of PCI, n (%)

35 (64.8)

637 (73.8)

89 (59.3)

586 (70.4)

213 (70.3)

549 (68.7)

  1. Data are expressed as means ± SD or counts and percentages, as appropriate
  2. Abbreviations: BMI, body mass index; eGFR, estimated glomerular filtration rate; CAD, coronary artery disease; ACS, acute coronary syndrome; PCI, percutaneous coronary intervention; SD, standard deviation