Table 1.

Risk factors in probands and their siblings with premature onset IHD.

Risk factor	Probands	Siblings
Age	52.0	56.0
Female	113 (19.5%)	429 (54.6%)
Male	467 (80.5%)	357 (45.4%)
Body mass index	28.5	28.2
Non smoker	116 (20.0%)	328 (41.7%)
Ex smoker (≥ 1 year)	249 (42.9%)	224 (28.5%)
Current smoker	215 (37.1%)	235 (29.9%)
Hypertension treatment	148 (25.5%)	177 (22.5%)
Systolic BP ≥ 140 mmHg	30 (5.2%)	239 (30.4%)
Diastolic BP ≥ 95 mmHg	1 (0.2%)	2 (0.3%)
Total hypertension	179 (30.9%)	418 (53.2%)
Known diabetes	53 (9.1%)	43 (5.5%)
Random blood sugar ≥ 11.1 mmol/l	2 (0.3%)	6 (0.7%)
Total cholesterol (mmol/l)	4.9	5.8
Low density lipoprotein (mmol/l)	2.9	3.4
Triglycerides (mmol/l)	2.4	2.3
High density lipoprotein (mmol/l)	1.3	1.2