Table 2.
Birth weight and gestational age comparisons by cohorts
| Birthweight in grams | Gestational age | ||||||
|---|---|---|---|---|---|---|---|
| Group | Mean | SD | ANOVA | Group | Mean | SD | ANOVA |
| PTSD-affected | 3053 | 682 | F=5.4 | PTSD-affected | 38.7 | 2.8 | F=1.3 |
| PTSD-recovered | 3244 | 521 | df 3, 835 | PTSD-recovered | 39.2 | 1.8 | df=3, 835 |
| Non-exposed | 3274 | 628 | p=.001 | Non-exposed | 39.1 | 2.5 | p=.269 |
| Trauma-resilient | 3336 | 612 | Trauma-resilient | 39.3 | 2.4 | ||
| Overall | 3265 | 615 | Overall | 39.1 | 2.4 | ||
| Low birth weight | Preterm birth | ||||||
|---|---|---|---|---|---|---|---|
| Group | % | n | Chi squared | Group | % | N | Chi squared |
| PTSD-affected | 13.3 | 13 | X2=2.9 | PTSD-affected | 22.4 | 22 | X2=7.2 |
| PTSD-recovered | 8.3 | 13 | df=3 | PTSD-recovered | 12.1 | 19 | df=3 |
| Non-exposed | 8.7 | 24 | p=.414 | Non-exposed | 17.3 | 48 | p=.067 |
| Trauma-resilient | 7.8 | 24 | Trauma-resilient | 13.0 | 40 | ||
| Overall | 8.8 | 74 | Overall | 15.4 | 129 | ||