Table 5.
Summary of heritability estimates for brain phenotypes
| h2* (SE) | 95% confidenceinterval | Included covariates | h2 (SE) after including a factor for log total brain volume | |
|---|---|---|---|---|
| Total brain volume | 0.99 (0.06) | 0.87–1.0 | Sex | NA |
| Cerebral volume | 0.98 (0.06) | 0.86–1.0 | Sex | 0.77 (0.08) |
| Cerebellar volume | 0.86 (0.09) | 0.68–1.0 | Sex, weight | 0.85 (0.07) |
| Combined hippocampal volume | 0.95 (0.07) | 0.81–1.0 | Sex, weight | 0.86 (0.08) |
| Corpus callosal area | 0.89 (0.07) | 0.75–1.0 | Sex, age, weight | 0.58 (0.09) |
*p < 10−16. NA, Not applicable.