Table 1.
Pairs of Individuals in Embedded Genetic Sample, Add Health Wave I
| Sibling Type | N |
|---|---|
| Twin | 784 |
| Monozygotic | 307 |
| Dizygotic | 452 |
| Undetermined twin type | 25 |
| Full sibling | 1251 |
| Half sibling | 442 |
| Unrelated sibling | 662 |
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