Table 2.
Summary statistics for phenotypes
| Mean (SD) |
Range | Significant covariates |
||||
|---|---|---|---|---|---|---|
| All | Male | Female | Factor | R2 | ||
| Total brain volume (cc) | 67.8 (5.2) | 72.8 (4.7) | 65.9 (3.9) | 55.1–83.3 | Sex | 0.36 |
| Cerebrum (cc) | 60.1 (4.7) | 64.4 (4.3) | 58.4 (3.7) | 48.8–73.7 | Sex | 0.32 |
| Cerebellum (cc) | 5.34 (0.50) | 5.81 (0.43) | 5.14 (0.36) | 4.27–6.85 | Sex, weight | 0.40 |
| Combined hippocampi (cc) | 0.72 (0.07) | 0.76 (0.06) | 0.71 (0.07) | 0.49–0.93 | Sex, weight | 0.13 |
| Corpus callosum (mm2) | 88.9 (12.0) | 90.3 (12.6) | 88.5 (11.7) | 60.2–136.5 | Sex, age, weight | 0.21 |