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Table 1 Characteristics of Chinese, South Asian and White patients who underwent percutaneous coronary intervention

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 p
N = 4729 n = 139 n = 371 n = 4219  
Female 35 (25.2) 74 (20.0) 1153 (27.3) 0.008
Age (years)     < 0.0001
< 50 18 (12.9) 70 (18.9) 593 (14.1)  
50 − 64 42 (30.2) 164 (44.2) 1587 (37.6)  
65 − 74 54 (38.9) 88 (23.7) 1152 (27.3)  
> 75 25 (18.0) 49 (13.2) 887 (21.0)  
Distance to nearest hospital ≥ 50 km 5 (3.6) 42 (11.3) 1306 (31.0) < 0.0001
Income quintile*     < 0.0001
1 (low) 39 (28.3) 85 (23.22) 902 (22.5)  
2 34 (24.6) 106 (29.0) 830 (20.7)  
3 25 (18.1) 85 (23.2) 771 (19.3)  
4 15 (10.9) 52 (14.2) 774 (19.4)  
5 (high) 25 (18.1) 38 (10.4) 724 (18.1)  
Diabetes mellitus 26 (18.7) 92 (24.8) 641 (15.2) < 0.0001
Heart failure 18 (13.0) 30 (8.1) 330 (7.8) 0.09
Hypertension 52 (37.4) 92 (24.8) 1041 (24.7) 0.003
Cerebrovascular disease 5 (3.6) 0 (0.0) 43 (1.0) 0.0015
Renal disease 5 (3.6) 5 (1.4) 63 (1.5) 0.13
Cardiogenic shock 3 (2.2) 4 (1.1) 44 (1.0) 0.46
Cardiac dysrhythmia 18 (13.0) 24 (6.5) 431 (10.2) 0.04
Severity of coronary disease†     0.6
Single-vessel 51 (37.8) 135 (37.1) 1481 (36.2)  
2-vessel 39 (28.9) 119 (32.7) 1341 (32.8)  
3-vessel 38 (28.1) 98 (26.9) 1126 (27.5)  
Left main 7 (5.2) 9 (2.5) 130 (3.2)  
Normal 0 (0) 3 (0.8) 12 (0.3)  
  1. Variables presented as n (%); Analyses: comparing categories across ethnic groups using a Chi-square test (2-df). *Data are missing for 224 patients (Chinese 0.7%, South Asians 1.3%, and White 5.2%). Data are missing for 140 patients (Chinese 2.9%, South Asians 1.9%, White 3.1%).