Table 1 Clinical and laboratory findings of 63 monozygotic (MZ) and 38 dizygotic (DZ) twin pairs (x ± SD or %)
From: Effect of genetic and environmental influences on cardiometabolic risk factors: a twin study
MZ twins (n = 126) | DZ twins (n = 76) | p value | |
|---|---|---|---|
Women (%) | 73.0 | 71.1 | 0.832 |
Age (years) | 47.4 ± 15.5 | 38.3 ± 13.5 | < 0.001 |
Duration of smoking (years) | 4.8 ± 9.5 | 4.8 ± 9.6 | 0.829 |
Alcohol consumption (unit/week) | 1.1 ± 2.2 | 1.9 ± 3.4 | 0.553 |
Physical activity (MET/24 hours) | 65.8 ± 22.2 | 60.3 ± 21.1 | 0.094 |
Weight (kg) | 71.1 ± 14.5 | 72.4 ± 17.6 | 0.827 |
Height (cm) | 165 ± 9 | 167 ± 9 | 0.211 |
Body mass index (kg/m 2 ) | 25.9 ± 4.9 | 25.8 ± 5.9 | 0.576 |
Waist circumference (cm) | 88 ± 14 | 88 ± 16 | 0.757 |
Systolic blood pressure (mmHg) | 130.2 ± 14.8 | 125.3 ± 14.1 | 0.026 |
Diastolic blood pressure (mmHg) | 74.7 ± 10.3 | 72.6 ± 9.8 | 0.152 |
Serum total cholesterol (mmol/l) | 5.35 ± 1.23 | 5.00 ± 1.07 | 0.031 |
Serum HDL-cholesterol (mmol/l) | 1.60 ± 0.39 | 1.60 ± 0.36 | 0.755 |
Serum triglycerides (mmol/l) | 1.33 ± 0.86 | 1.07 ± 0.80 | 0.004 |
Fasting blood glucose (mmol/l) | 5.01 ± 0.75 | 4.81 ± 0.63 | 0.064 |
Fasting insulin (μU/ml) | 7.35 ± 5.15 | 6.83 ± 4.64 | 0.665 |
HOMA-IR | 1.70 ± 1.39 | 1.53 ± 1.29 | 0.404 |
Serum creatinine (μmol/l) | 70.0 ± 9.8 | 72.3 ± 11.4 | 0.219 |
Serum uric acid (μmol/l) | 286.3 ± 75.3 | 282.2 ± 74.8 | 0.584 |
Fibrinogen (g/l) | 3.27 ± 0.69 | 3.18 ± 0.72 | 0.219 |
Serum homocysteine (μmol/l) | 12.1 ± 5.64 | 10.9 ± 2.9 | 0.408 |
Serum C-reactive protein (mg/l) | 3.82 ± 6.53 | 4.27 ± 5.01 | 0.871 |