Table 3.
Study of 510 sibling pairs: characteristics of survivors of acute myocardial infarction aged 30-79 and of their sex and age matched control siblings with no history of coronary heart disease. Values are mean (SD) unless stated otherwise
| Characteristic | Cases (n=510) | Controls (n=510) | P value |
|---|---|---|---|
| Questionnaire | |||
| Age (years) | 59.4 (9.6) | 58.9 (9.8) | Matched |
| No (%) of men | 329 (65) | 329 (65) | Matched |
| Body mass index (kg/m2) | 26.8 (3.8) | 26.2 (3.4) | 0.007 |
| Height (m) | 1.67 (0.09) | 1.67 (0.09) | 0.48 |
| Weight (kg) | 74.7 (12.5) | 73.4 (12.6) | 0.09 |
| No (%) of current smokers | 220 (43) | 139 (27) | <0.0001 |
| No (%) with treated diabetes | 30 (6) | 22 (4) | 0.25 |
| No (%) with treated hypertension | 155 (30) | 114 (22) | 0.003 |
| No (%) ended education <16 years | 392 (77) | 385 (75) | 0.69 |
| No (%) with household income <£12 000/year† | 115 (25) | 98 (21) | 0.12 |
| Blood sample | |||
| Total cholesterol (mmol/l) | 5.95 (1.21) | 5.80 (1.02) | 0.04 |
| Apolipoprotein A1 (g/l) | 1.15 (0.19) | 1.22 (0.20) | <0.0001 |
| Apolipoprotein B (g/l) | 1.19 (0.29) | 1.10 (0.23) | <0.0001 |
| Fibrinogen (g/l)* | 3.71 (0.87) | 3.42 (0.64) | <0.0001 |
*
Measurements were available for only 236 cases and 177 controls.
†
Information available for 456 cases and 468 controls.