Table 2. Hierarchical regression between maternal hair cortisol levels and newborn infants’ cortisol levels.
| Model 1 | Model 2 | |||||||
|---|---|---|---|---|---|---|---|---|
| M (SD) | M (SD)a | β | SE B | t | β | SE B | t | |
| Maternal hair treatment | -0.13 | 0.21 | -0.66 | -0.06 | 0.21 | -0.31 | ||
| Cortisol T1 | 529,80(653,74) | 5.78(1.04) | -0.24 | 0.10 | -2.45* | |||
| Cortisol T2 | 422,23(510,99) | 5.76(0.70) | -0.11 | 0.15 | -0.74 | |||
| Cortisol T3 | 448,25(681,63) | 5.76(0.77) | -0.24 | 0.13 | -1.78 | |||
| Cortisol T4 | 735,81(1300,86) | 6.00(0.97) | 0.16 | 0.10 | 1.51 | |||
| R2 | 0.00 | 0.14 | ||||||
| F for changes in R2 | 0.43 | 3.01* | ||||||
Note = *Significant at p ≤ 0.05
aMean and standard deviation of logarithmic transformation of cortisol levels
Dependent variable: Hair cortisol levels in newborn infants
T1 = trimester 1; T2 = trimester 2; T3 = trimester 3; T4 = Postpartum period.