Sample characteristics according to sex, age and zygosity
| Age | Monozygotic twins | Dizygotic twins | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number | Systolic blood pressure (mm Hg) | Birth weight (kg) | Current weight (kg) | Number | Systolic blood pressure (mm Hg) | Birth weight (kg) | Current weight (kg) | ||||
| Mean (SE) | Mean (SE) | ||||||||||
| Male | 11–12 | 498 | 103.7 (0.5) | 2.58 (0.03) | 40.7 (0.4) | 234 | 105.3 (0.8) | 2.60 (0.04) | 42.8 (0.7) | ||
| 17–18 | 368 | 118.6 (0.6) | 2.60 (0.03) | 71.1 (0.6) | 194 | 119.3 (0.9) | 2.79 (0.03) | 73.6 (0.9) | |||
| Female | 11–12 | 436 | 96.3 (0.7) | 2.53 (0.03) | 44.1 (0.5) | 266 | 93.8 (1.0) | 2.66 (0.03) | 45.6 (0.7) | ||
| 17–18 | 420 | 103.2 (0.7) | 2.61 (0.03) | 60.8 (0.5) | 206 | 102.3 (0.9) | 2.55 (0.04) | 62.5 (0.9) | |||