Table 1.
Characteristics of mother-child dyads by maternal lifetime traumatic events, % or median (interquartile range)
| Maternal lifetime traumatic events (count) | |||||
|---|---|---|---|---|---|
| 0–2 (n = 232) | 3 (n = 96) | 4–5 (n = 153) | 6+ (n = 148) | Total (n = 629) | |
| Maternal Characteristics | |||||
| Race (%) a | |||||
| African American | 91 | 88 | 82 | 78 | 85 |
| White | 9 | 12 | 18 | 22 | 15 |
| Education (%) | |||||
| ≤ High school | 84 | 76 | 72 | 78 | 78 |
| >High school | 16 | 24 | 29 | 22 | 22 |
| Asthma (% yes) a | 8 | 4 | 11 | 19 | 11 |
| Prenatal smoking (% yes) b | 9 | 11 | 10 | 22 | 13 |
| Age (years), median b | 22 (20, 26) | 22 (20, 27) | 23 (20, 27) | 25 (21, 29) | 23 (20,27) |
| Social Support Score, median c | 2.7 (1.7, 3.8) | 2.7 (1.7, 4.3) | 3.0 (2.0, 4.2) | 2.8 (2.0,4.0) | 2.8 (1.8,4.0) |
| Infant Characteristics | |||||
| Bronchiolitis (% yes) | 24 | 20 | 18 | 24 | 22 |
| Sex (% male) | 53 | 51 | 50 | 51 | 51 |
| Birth weight (kg), median | 3.2 (3.0, 3.5) | 3.3 (3.0, 3.5) | 3.3 (3.0, 3.5) | 3.3 (3.1, 3.6) | 3.2 (3.0, 3.5) |
| Gestational age (weeks), median | 39 (38, 40) | 39 (38, 40) | 39 (39, 40) | 39 (39, 40) | 39 (38, 40) |
a
p<0.01
b
p<0.001 as determined by Kruskal-Wallace and Pearson chi-squared statistical tests.
c
The Social Support Score was generated from the Social Support Questionnaire and equals the average number of people available to offer an individual support across a range of situations.