Table 5. Summary of hierarchical regression predicting child birthweight from birth mother distress, stressors and protective maternal characteristics in full term infants only.
| Full term infants (N = 356) | |||
|---|---|---|---|
| Predictor | B | R 2 Δ | FΔ |
| Openness | 0.12* | 0.012 | 4.481* |
| Pregnancy Risk Index | -0.03 | 0.001 | 0.369 |
| Distress | 0.017 | 3.037* | |
| Mood | -0.05 | ||
| MW | -0.12* | ||
| Stressors | .085 | 8.326** | |
| NLE | 0.02 | ||
| SES | 0.28** | ||
| CFS | 0.21** | ||
| RC | 0.03 | ||
| Maternal characteristics | 0.08 | .004 | 1.576 |
| Maternal characteristics Interaction | .031 | 3.076* | |
| NLE*Maternal characteristics | 0.10 α | ||
| SES* Maternal characteristics | 0.11 α | ||
| CFS*Maternal characteristics | -0.10 α | ||
| RC*Maternal characteristics | -0.13* | ||
| Total R 2 (adjusted) | .150* (11.8) | ||
Note. All variables (except interaction terms) were standardized before being entered into the regression model. MW = Material Worry, NLE = Negative life events, SES = Socio-economic Status, CFS = Chronic Family Stress, RC = Relational conflict.
α p < .1
*p < .05
**p < .01