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Behavioral characteristics of the complete HCP sample including twins and siblings.
| Measure | n | Mean ± SD (range) |
|---|---|---|
| Males/females | 507/606 | – |
| Age | 1113 | 28.8 ± 3.7 (22–37) |
| Sleep duration (hours) | 1113 | 6.8 ± 1.1 (2.5–12) |
| Total sleep quality | 1113 | 4.8 ± 2.8 (0–19) |
| BMI | 1112 | 26.5 ± 5.2 (16.5–47.8) |
| Intelligence (total cognitive score) | 1096 | 121.8 ± 14.6 (84.6–153.4) |
| Depression (DSM scale) | 1105 | 53.9 ± 5.7 (50–87) |
