Table 1 Population characteristics and perinatal factors from n = 190 participants
From: Interrelationships and determinants of aging biomarkers in cord blood
Characteristics | Mean (± SD) or n (%) |
|---|---|
Newborn | |
Girls, n | 88 (49.2%) |
Birthweight, grams | 3393.08 ± 484.49 |
European, n | 169 (89.0%) |
Gestational age, weeks | 39.15 ± 1.54 |
Relative telomere length | 0.95 ± 0.16 [0.51–1.58] |
Relative mtDNA content | 1.04 ± 0.47 [0.25–4.35] |
DNAm age, years | 0.46 ± 0.26 [-0.23–1.21] |
Global DNA methylation, proportion | 0.50 ± 10 [47–53] |
Gene-promotor methylation, proportion | 0.29 ± 0.01 [0.27–0.31] |
Gene-body methylation, proportion | 0.64 ± 0.01 [0.60–0.67] |
Intergenic-region methylation, proportion | 0.52 ± 0.01 [0.49–0.55] |
Maternal | |
Age, years | 29.35 ± 4.5 |
Early pregnancy BMI, kg/m2 | 24.39 ± 4.34 |
Education | |
Low, n | 27 (14.2%) |
Middle, n | 66 (34.7%) |
High, n | 97 (51.1%) |
Smoking, n | |
Never smoked | 123 (64.7%) |
Former smoker | 44 (23.2%) |
Smoked during pregnancy | 23 (12.1%) |
Parity | |
1, n | 104 (54.7%) |
2, n | 58 (30.5%) |
 ≥ 3, n | 28 (14.7%) |
Paternal age, years | 31.81 ± 5.34 |
Season of delivery | |
October 1–March 31 | 84 (44.2%) |
April 1—September 30 | 106 (55.8%) |