Table 3.
OLS Regression Modeling of Household Characteristics on child 12-month HPA-axis functioning2
| Household Characteristics | Cortisol (n=104)1 |
DHEA (n=103) |
Cortisol/DHEA (n=103) |
|---|---|---|---|
| Beta. Coefficient (CI beneath in parentheses) | |||
| HOME (Total Score) | −0.03 | −0.02 | −0.03 |
| (−0.06 – 0.01) | (−0.22 – 0.18) | (−0.08 – 0.019) | |
| Responsivity | 0.018 | −0.18 | 0.05 |
| (−0.14 – 0.18) | (−1.00 – 0.65) | (−0.15 – 0.25) | |
| Acceptance | −0.06 | 0.14 | −0.13 |
| (−0.24 – 0.11) | (−0.76 – 1.04) | (−0.35 – 0.09) | |
| Involvement | 0.02 | −0.37 | 0.0 |
| (−0.14 – 0.17) | (−1.18 – 0.44) | (−0.15 – 0.25) | |
| HOME Tertiles (lowest is referent) | |||
| Middle | −0.50 | 1.84 | −0.61 |
| (−1.06 – 0.05) | (−1.07 – 4.76) | (−1.34 – 0.11) | |
| Highest | −0.66* | −0.82 | −0.60 |
| (−1.28 – −0.04) | (−4.09 – 2.44) | (−1.41 – 0.22) | |
| SES Total Asset Score | 0.05 | 0.77* | −0.06 |
| (−0.08 – 0.18) | (0.08 – 1.47) | (−0.24 – 0.11) | |
| SES Tertiles (lowest is referent) | |||
| Middle | 0.06 | 3.55** | −0.50 |
| (−0.42 – 0.55) | (1.01 – 6.10) | (−1.13 – 0.14) | |
| Highest | 0.39 | 3.37* | −0.06 |
| (−0.13 – 0.9) | (0.68 – 6.06) | (−0.74 – 0.61) | |
***
p<0.001,
**
p<0.01,
*
p<0.05
1
All biomarkers were measured in pg/mg and cortisol and cortisol/DHEA ratio were log-transformed. One outlier was identified for DHEA level and dropped
2
All models controlled for SES, Child Age in Days, child sex, study arm, and maternal parity