Table 1.
Characteristics and relative leukocyte telomere length (rLTL) among a sample of mother-child pairs enrolled in the CCCEH Mothers and Newborns birth cohort (n=224).
| Mean±SD or N (%) | |
|---|---|
| African American | 81 (36) |
| Dominican | 143 (64) |
| Maternal age (years) | 25.3±5.2 |
| <High school education or equivalent | 78 (35) |
| Material hardship | 91 (41) |
| Maternal pre-pregnancy over weighta | 99 (47) |
| Prenatal environmental tobacco smoke | 79 (35) |
| Child sex (girl) | 126 (56) |
| Gestational age (weeks) | 39.4±1.3 |
| Birthweight (kg) | 3.4±0.5 |
| Relative LTL | |
| Maternal (n=197, 25.3±5.2 yearsc) | 1.01±1.13b |
| Cord blood (n=224, birthc) | 2.47±1.00b |
| Age 3 (n=224, 2.9±0.4 yearsc) | 2.06±1.02b |
| Age 5 (n=177, 5.0±0.2 yearsc) | 1.99±1.00b |
| Age 7 (n=168, 7.1±0.2 yearsc) | 1.99±1.00b |
| Age 9 (n=185, 9.0±0.2 yearsc) | 1.97±1.00b |
a
N=220, defined as BMI > 25 kg/m2
b
Adjusted for storage time from a cubic spline mixed effect model with storage time fixed at the mean for all samples and all follow-up ages.
c
Mean±standard deviation age at blood draw