| All (%) | Caucasian (%) | South Asian (%) | p Value* | |
| Gender | ||||
| Men | 96 356 (64.5) | 75 452 (64.1) | 3989 (73.3) | <0.001 |
| Women | 53 141 (35.5) | 42 303 (35.9) | 1455 (26.7) | |
| Missing† | 833 (0.6) | 568 (0.5) | 42 (0.8) | 0.003 |
| Age groups (years) | ||||
| 20–54 | 23 372 (15.6) | 17 572 (16.5) | 1437 (33.8) | <0.001 |
| 55–64 | 26 484 (17.6) | 20 824 (19.5) | 1018 (23.9) | |
| 65–74 | 35 042 (23.3) | 27 753 (26.1) | 1237 (29.1) | |
| 75+ | 49 063 (32.6) | 40 399 (37.9) | 561 (13.2) | |
| Missing | 16 369 (10.9) | 11 775 (10) | 1233 (22.5) | <0.001 |
| Ambulance arrival | ||||
| Yes | 104 593 (81.4) | 84 629 (82.1) | 3411 (68.2) | <0.001 |
| No | 23 853 (18.6) | 18 479 (17.9) | 1591 (31.8) | |
| Missing | 21 884 (14.6) | 15 215 (12.9) | 484 (8.8) | <0.001 |
| Thrombolytic therapy | ||||
| Yes | 50 511 (35.9) | 40 343 (36.7) | 2187 (41.0) | <0.001 |
| No | 90 025 (64.1) | 69 518 (63.3) | 3142 (59.0) | |
| Missing | 9794 (6.5) | 8462 (7.2) | 157 (2.9) | <0.001 |
| Past MI | ||||
| Yes | 36 082 (27.5) | 28 551 (27.3) | 1497 (30.8) | <0.001 |
| No | 95 299 (72.5) | 75 974 (72.7) | 3360 (69.2) | |
| Missing | 18 949 (12.6) | 13 798 (11.7) | 629 (11.5) | 0.66 |
| Angina | ||||
| Yes | 43 099 (33.0) | 33 933 (32.7) | 1597 (33.0) | 0.60 |
| No | 87 449 (67.0) | 69 914 (67.3) | 3237 (67.0) | |
| Missing | 19 782 (13.2) | 14 476 (12.2) | 652 (11.9) | 0.44 |
| Hypertension | ||||
| Yes | 48 676 (37.7) | 38 309 (37.3) | 2284 (47.7) | <0.001 |
| No | 80 311 (62.3) | 64 443 (62.7) | 2500 (52.3) | |
| Missing | 21 343 (14.2) | 15 571 (13.2) | 702 (12.8) | 0.43 |
| Diabetes | ||||
| Yes | 20 840 (16.6) | 15 872 (15.6) | 1893 (41.8) | <0.001 |
| No | 104 973 (83.4) | 85 788 (84.4) | 2641 (58.3) | |
| Missing | 24 517 (16.3) | 16 663 (14.1) | 952 (17.35) | <0.001 |
| Current smoker | ||||
| Yes | 40 462 (31.9) | 32 634 (32.1) | 1266 (27.4) | <0.001 |
| No | 86 197 (68.1) | 68 986 (67.9) | 3353 (72.6) | |
| Missing | 23 671 (15.7) | 16 703 (14.1) | 867 (15.8) | <0.001 |
| Admission diagnosis | ||||
| MI | 65 966 (44.3) | 53 630 (45.6) | 2457 (45.1) | <0.001 |
| ACS | 35 006 (23.5) | 27 143 (23.1) | 1806 (33.1) | |
| Other | 47 932 (32.2) | 36 721 (31.3) | 1187 (21.8) | |
| Missing | 1426 (1.0) | 829 (0.7) | 36 (0.7) | 0.70 |
ACS, acute coronary syndrome; MI, myocardial infarction.
*p Value (bold) for difference between Caucasian and South Asians.
†p Value (italic) to see if proportion of missing data is similar for Caucasians and South Asians.