TABLE 3.
Hierarchical regression analysis for lifetime stress exposure severity predicting negative prenatal health behaviors (N = 164)
| Variable | B | SE (B) | β | R2 | ΔR2 | p |
|---|---|---|---|---|---|---|
| Model 1 | .16 | .000 | ||||
| Lifetime stress exposure severity | .08 | .01 | .04 | .000 | ||
| Model 2 | .22 | .06* | .000 | |||
| Lifetime stress exposure severity | .07 | .01 | .36 | .000 | ||
| Age | −.13 | .12 | −.10 | .25 | ||
| Household income | .09 | .33 | .03 | .75 | ||
| Household education | −.87 | .47 | −.19 | .07 | ||
| Ethnicity: African American | −.24 | 1.22 | −.01 | .83 | ||
| Ethnicity: Other | −2.06 | 1.63 | −.09 | .20 | ||
| Model 3 | .22 | .07* | .000 | |||
| Lifetime stress exposure severity | .07 | .01 | .35 | .000 | ||
| Age | −.12 | .12 | −.09 | .30 | ||
| Household income | .12 | .339 | .04 | .70 | ||
| Household education | −.77 | .48 | −.18 | .11 | ||
| Ethnicity: African American | −.33 | 1.23 | −.02 | .78 | ||
| Ethnicity: Other | −2.01 | 1.64 | −.09 | .22 | ||
| Marital status | −.60 | 1.19 | −.05 | .61 | ||
| Model 4 | .25 | .15** | .000 | |||
| Lifetime stress exposure severity | .05 | .01 | .27 | .001 | ||
| Age | −.05 | .12 | −.04 | .65 | ||
| Household income | .21 | .33 | .08 | .52 | ||
| Household education | −.81 | .48 | −.19 | .09 | ||
| Ethnicity: African American | −.12 | 1.22 | −.01 | .91 | ||
| Ethnicity: Other | −1.84 | 1.61 | −.08 | .25 | ||
| Marital status | −.73 | 1.17 | −.06 | .53 | ||
| Current perceived stress | .17 | .07 | .19 | .01 |
Abbreviation: SE, standard error.
*
p < .05.
**
p < .01.