Table 1 Background characteristics of mothers and father with information on epigenetic age
Background characteristics | Pregnancies with maternal epigenetic age information (n = 2198) | Pregnancies with paternal epigenetic age information (n = 2193) |
|---|---|---|
Age at measurement of epigenetic age, mean (SD) | 30.1 (4.5) | 32.7 (5.4) |
Gestational week of measurement, median (IQR) | 19 (18, 20) | 19 (18, 20) |
Educational level, n(%) | ||
Less than high-school | 106 (4.8) | 164 (7.5) |
High-school | 588 (26.8) | 830 (37.9) |
College, up to 4 years | 914 (41.6) | 623 (28.4) |
College, more than 4 years | 584 (26.6) | 512 (23.4) |
Missing | 6 (0.3) | 64 (2.9) |
Primiparous, n(%) | ||
No | 1170 (53.2) | NA |
Yes | 1028 (46.8) | NA |
Smoking status, n(%)a | ||
Never | 1118 (50.9) | 1016 (46.3) |
Former | 442 (20.1) | 404 (18.4) |
Current | 628 (28.6) | 637 (29.1) |
Missing | 10 (0.5) | 136 (6.2) |
Body mass index, n(%) | ||
< 25 | 1454 (66.6) | 906 (41.3) |
25–29.9 | 474 (21.6) | 966 (44.1) |
≥ 30 | 211 (9.6) | 226 (10.3) |
Missing | 49 (2.2) | 95 (4.3) |
Diabetes mellitus, n(%) | ||
No | 2179 (99.1) | 2172 (99.1) |
Yes | 19 (0.9) | 20 (0.9) |
Chronic hypertension, n(%) | ||
No | 2176 (99.0) | 2130 (97.1) |
Yes | 22 (1.0) | 63 (2.9) |
Gestational diabetes, n(%) | ||
No | 2171 (98.2) | NA |
Yes | 27 (1.2) | NA |