Table 1 Study population characteristics.
Characteristic | Missing | Value |
|---|---|---|
Adulthood | n = 211 | |
Age, years | 22.8 ± 3.2 | |
Birth year | 1976 ± 3.2 | |
Sex | ||
Male | 104 (49.3) | |
Female | 107 (50.7) | |
Body mass index, kg/m2 | 21.5 ± 2.7 | |
Waist-to-hip ratio | 0.78 ± 0.07 | |
Smokers, n | 67 (31.8) | |
Alcohol consumptions per week, units | 5.4 ± 7.9 | |
Medication use (possibly associated with GGT) 14 days prior, n | 12 (5.7) | |
Gamma-glutamyl transferase, U/L; median (IQR) | 16 (12–20) | |
Telomere length | ||
Birth | 72 | 1.30 ± 0.61 |
Young adulthood | 1.04 ± 0.28 | |
Education twin | ||
Low | 67 (31.7) | |
High | 144 (68.3) | |
Zygosity-chorionicity | ||
Dizygotic–dichorionic | 68 (32.2) | |
Monozygotic–dichorionic | 69 (32.7) | |
Monozygotic–monochorionic | 74 (35.1) | |
Complete-pair in final study | ||
One twin | 65 (30.8) | |
Both twins | 146 (69.2) | |
Maternal | n = 138 | |
Socioeconomic status: maternal education | 8 | |
Low | 53 (40.8) | |
Middle | 30 (23.1) | |
High | 47 (36.1) | |
