No of patients | 375 | 190 | 185 | |
Age in years (mean (range)) | 61.4 (21–96) | 63.0 (21–96) | 59.7 (21–91) | p = 0.049 |
Sex (male) | 204 (54) | 91 (48) | 113 (61) | 1.7 (1.1 to 2.6); 0.014 |
ED diagnostic category | | | | |
Chest pain | 231 (62) | 145 (76) | 86 (46) | 0.3 (0.2 to 0.4); <0.0001 |
Angina | 76 (20) | 28 (15) | 48 (26) | 2.0 (1.2 to 3.4); 0.010 |
Myocardial infarction | 68 (18) | 17 (9) | 51 (28) | 3.9 (2.1 to 7.0); <0.0001 |
Disposition | | | | |
Coronary care unit | 154 (41) | 34 (18) | 120 (65) | 8.5 (5.3 to 13.7); <0.0001 |
Other ward | 59 (16) | 36 (19) | 23 (12) | 0.6 (0.3 to 1.1); 0.111 |
Home | 162 (43) | 120 (63) | 42 (23) | 0.2 (0.1 to 0.3); <0.0001 |
Risk factors | | | | |
CHD family history | 95 (25) | 34 (18) | 61 (33) | 2.3 (1.4 to 3.7); 0.001 |
CHD personal history | 132 (35) | 74 (39) | 58 (31) | 0.7 (0.5 to 1.1); 0.152 |
Renal disease | 20 (5) | 10 (5) | 10 (5) | 1.0 (0.4 to 2.5); 1.0 |
Obesity | 49 (13) | 21 (11) | 28 (15) | 1.4 (0.8 to 2.6); 0.308 |
Hypertension | 172 (46) | 89 (47) | 83 (45) | 0.9 (0.6 to 1.4); 0.779 |
Current smoker | 95 (25) | 44 (23) | 51 (28) | 1.3 (0.8 to 2.0); 0.388 |
Ex-smoker | 82 (22) | 36 (19) | 46 (25) | 1.4 (0.9 to 2.3); 0.207 |
Diabetes mellitus | 70 (19) | 35 (18) | 35 (19) | 1.0 (0.6 to 1.7); 1.0 |
Previous lipid testing | | | | |
Known abnormal | 75 (20) | 39 (21) | 36 (20) | 0.9 (0.6 to 1.6); 0.898 |
Known normal | 100 (27) | 42 (22) | 58 (31) | 0.6 (0.4 to 1.0); 0.056 |
Unknown | 200 (53) | 109 (57) | 91 (49) | 1.4 (0.9 to 2.1); 0.138 |