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Table 2 Characteristics of Chinese, South Asian and White patients who underwent coronary artery bypass grafting surgery within one year of AMI

From: Outcomes following percutaneous coronary intervention and coronary artery bypass grafting surgery in Chinese, South Asian and white patients with acute myocardial infarction: administrative data analysis

Characteristics Chinese South Asian White pvalue
N = 1687 n = 43 n =137 n =1507  
Female 8 (18.6) 25 (18.3) 319 (21.2) 0.68
Age (years)     0.0717
< 50 3 (7.0) 15 (11.0) 111 (7.4)  
50 − 64 16 (37.2) 62 (45.2) 518 (34.4)  
65 − 74 16 (37.2) 40 (29.2) 545 (36.1)  
> 75 8 (18.6) 20 (14.6) 333 (22.10)  
Distance to the nearest hospital ≥ 50 km 2 (4.7) 15 (11.0) 514 (34.1) < 0.0001
Income quintile*   0.52
1 (low) 11 (26.8) 38 (28.6) 328 (23.0)  
2 9 (22.0) 34 (25.6) 289 (20.3)  
3 7 (17.1) 23 (17.3) 259 (18.2)  
4 8 (19.5) 20 (15.0) 275 (19.3)  
5 (high) 6 (14.6) 18 (13.5) 273 (19.2)  
Diabetes mellitus 12 (27.9) 44 (32.1) 321 (21.3) 0.0098
Heart failure 10 (23.3) 22 (16.1) 233 (15.5) 0.38
Hypertension 11 (25.6) 47 (34.3) 423 (28.1) 0.27
Cerebrovascular disease 1 (2.3) 0 (0.0) 39 (2.6) 0.16
Renal disease 0 (0.0) 6 (4.4) 35 (2.3) 0.19
Cardiogenic shock 2 (4.7) 5 (3.7) 19 (1.3) 0.0231
Cardiac dysrrhythmia 6 (14.0) 19 (13.9) 208 (13.8) 0.99
Severity of coronary disease†     0.49
Single vessel 1 (2.5) 6 (4.8) 73 (5.3)  
2 vessel 8 (19.5) 14 (11.2) 229 (16.8)  
3 vessel 21 (51.2) 85 (68.0) 795 (58.4)  
Left main 11 (26.8) 20 (16.0) 264 (19.4)  
Normal 0 (0.0) 0 (0.0) 1 (0.1)  
  1. Variables presented as n (%); Analyses: comparing categories across ethnic groups using a Chi-square test (2-df). *Data are missing for 89 patients (Chinese = 4.7%, South Asians 3%, and White 5.5.%).
  2. Data are missing for 159 patients (Chinese 4.7%, South Asians 8.8%, White 9.6%).