Table 3.
Phenotypic associations between sleep indices and cortical thickness are mirrored by genetic correlations.
| Phenotypic correlation, Fig. 1b (HCP) | ||
|---|---|---|
| Left superior frontal gyrus | p | |
| HCP (total sample) (n = 1113) | r = −0.10 | 0.0013* |
| Genetic correlation (HCP) | ρg = −0.27 | 0.035* |
| Environmental correlation (HCP) | ρe = 0.02 | 0.97 |
| Phenotypic correlation, Fig. 1e (eNKI) | ||
|---|---|---|
| Left inferior temporal cortex | p | |
| HCP (total sample) (n = 1113) | r = 0.04 | 0.14 |
| Genetic correlation (HCP) | ρg = −0.09 | 0.67 |
| Environmental correlation (HCP) | ρe = 0.06 | 0.27 |
| Right occipital cortex | p | |
| HCP (total sample) (n = 1113) | r = 0.04 | 0.20 |
| Genetic correlation (HCP) | ρg = 0.28 | 0.03* |
| Environmental correlation (HCP) | ρe = −0.08 | 0.19 |
| Right inferior temporal cortex | p | |
| HCP (total sample) (n = 1113) | r = 0.004 | 0.90 |
| Genetic correlation (HCP) | ρg = 0.38 | 0 .02* |
| Environmental correlation (HCP) | ρe = −0.11 | 0.06 |
Genetic and environmental correlation between sleep and thickness in FDR-corrected ROIs from phenotypic correlational analysis in Fig. 1. Asterisks (**) indicates to significant correlation (q < 0.05) and asterisk (*) indicates association at trend-level p < 0.05.