Table 2.
Parameter estimates of the hippocampal measurement model, with regressions of hair cortisol, and covariates (age, sex) on hippocampal subfield volumes.
| Model fit | χ2 = 31.26, df = 38, RMSEA = 0, CFI = 1 | |
|---|---|---|
| Parameter estimates (Standard error) | Δχ2(1) | |
| Latent variable variances | ||
| DG/CA3 | 0.58 (0.12) | — |
| CA1-2 | 0.52 (0.12) | — |
| Sub | 0.57 (0.12) | — |
| EC | 0.43 (0.11) | — |
| Latent variable covariances | ||
| DG/CA3 – CA1-2 | 0.49 (0.11) | — |
| DG/CA3 – Sub | 0.27 (0.10) | — |
| DG/CA3 – EC | 0.33 (0.09) | — |
| CA1-2 – Sub | 0.24 (0.10) | — |
| CA1-2 – EC | 0.32 (0.08) | — |
| Sub – EC | 0.30 (0.09) | — |
| Indicator covariances | ||
| Left hippocampus | ||
| DG/CA3 – CA1-2 | 0.29 (0.09) | — |
| DG/CA3 – Sub | 0.28 (0.08) | — |
| CA1-2 – Sub | 0.30 (0.08) | — |
| Right hippocampus | ||
| DG/CA3 – CA1-2 | 0.20 (0.07) | — |
| DG/CA3 – Sub | 0.20 (0.07) | — |
| CA1-2 – Sub | 0.23 (0.08) | — |
| Regression paths | ||
| Hair cortisol onto DG/CA3 | −0.27 (0.11) | 5.47* |
| Hair cortisol onto CA1-2 | −0.18 (0.11) | 2.63 |
| Hair cortisol onto Sub | −0.11 (0.12) | 0.83 |
| Hair cortisol onto EC | −0.10 (0.10) | 0.97 |
| Age onto DG/CA3 | 0.20 (0.11) | 3.41 |
| Age onto CA1-2 | 0.23 (0.10) | 4.58* |
| Age onto Sub | −0.01 (0.11) | 0.01 |
| Age onto EC | 0.90 (0.10) | 0.71 |
| Sex onto DG/CA3 | −0.08 (0.10) | 0.70 |
| Sex onto CA1-2 | −0.13 (0.10) | 1.93 |
| Sex onto Sub | −0.04 (0.10) | 0.12 |
| Sex onto EC | −0.26 (0.09) | 7.77** |
Note. Standardized parameter estimates shown with standard errors in parenthesis. Error variances are not shown. *p < 0.05, **p < 0.01, ***p < 0.001.