Basic characteristics of the study population
| Characteristic | Cases (n=3411) n (%) | Controls (n=10 233) n (%) |
| Age (mean±SD years) | 41.1±10.2 | 41.1±10.2 |
| Male | 1871 (54.9) | 5613 (54.9) |
| Follow-up duration (mean±SD years) | 7.71±4.71 | 7.71±4.71 |
| Comorbidities | ||
| Diabetes mellitus* | 1299 (38.1) | 1006 (9.8) |
| Congestive heart failure* | 207 (6.1) | 86 (0.8) |
| Myocardial infarction* | 41 (1.2) | 23 (0.2) |
| Stroke* | 220 (6.5) | 195 (1.9) |
| Hyperlipidaemia* | 502 (14.7) | 433 (4.2) |
| Hypercholesterolaemia* | 111 (3.3) | 90 (0.9) |
| Hypertriglyceridaemia* | 86 (2.5) | 62 (0.6) |
| Hypertension* | 1232 (36.1) | 1147 (11.2) |
| Obesity* | 49 (1.4) | 37 (0.4) |
*P<0.0001.