Table 2.
Twin Intraclass and Cross-Age Correlations (and 95% confidence intervals)
| MZ | DZ | |
|---|---|---|
| CU Age 2 | .72 (.64-.78) | .41 (.28-.52) |
| CU Age 3 | .63 (.53-.71) | .40 (.27-.52) |
| CU Cross-Age | .41 (.32-.49) | .26 (.16-.36) |
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