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Table 1 Study Demographics

From: Modifiable risk factors remain significant causes of medium term mortality after first time Coronary artery bypass grafting

 

Total (N = 1177)

Survivors (N = 1018)

Non-long term Survivor (N = 159)

P-value

Male (%)

939 (80%)

823(81%)

116 (73%)

P = 0.026

female (%)

238 (20%)

195(19%)

43 (27%)

 

Age Mean (SD)

63 years (9.7)

62 (9.6)

68 (9.8)

P < 0.0001

CCS I

124 (10%)

107 (11%)

17 (11%)

P = 0.01

   II

335 (29%)

307 (30%)

28 (18%)

 

   III

429 (36%)

373 (36%)

56 (35%)

 

   IV

289 (25%)

231 (23%)

58 (36%)

 

Previous MI

552 (47%)

457 (45%)

95 (60%)

P = 0.01

Prev Cardiological Intervention

87 (7.4%)

78 (7.7%)

9 (5.7%)

P = 0.42

Diabetes

203 (17%)

162 (16%)

41 (26%)

P = 0.003

Hypertension

573 (49%)

487 (48%)

86 (54%)

P = 0.012

Hypercholestrolemia

843 (71%)

749 (74%)

94 (59%)

P < 0.0005

Current smoker

73 (6.2%)

62 (6.1%)

11 (6.9%)

P = 0.723

COPD

36 (3.1%)

23 (2.3%)

13 (8.2%)

P < 0.0005

PVD

146 (12%)

110 (11%)

36 (23%)

P < 0.0005

Coronary Disease

    

Single

56 (4.8%)

54 (5.3%)

2 (1.3%)

P = 0.860

Double

258 (22%)

234 (23%)

24 (15%)

 

Triple

863 (73%)

730 (72%)

133 (84%)

 

LMS disease

202 (17%)

173 (17%)

29 (18%)

P = 0.734

EF Good

777 (66%)

701 (69%)

76 (48%)

P < 0.0005

   Fair

308 (26%)

253 (25%)

55 (34%)

 

   Poor

92 (8%)

64 (6%)

28 (18%)

 

Pre-op IABP

17 (1.4%)

11 (1.1%)

6 (3.8%)

P = 0.019

No of distal anastomoses

3.24 (0.97) Range 1–6

3.24 (0.98)

3.26 (0.91)

P = 0.844

Bypass time

67 mins (25)

66 mins (24)

75 mins (32)

P = 0.002

X-Clamp time

27 mins (11)

27 mins (12)

27 mins (10)

P = 0.769

BMI>30

307 (28%)

259 (27%)

48 (31%)

P = 0.190

Trasylol

243 (21%)

210 (21%

33 (21%)

P = 1.000