Table 3.
Adults
| Agg1 | InA1 | HA1 | Agg2 | InA2 | HA2 | |
|---|---|---|---|---|---|---|
| MZ | ||||||
| Agg1 | 1.000 | |||||
| InA1 | 0.348 | 1.000 | ||||
| HA1 | 0.310 | 0.421 | 1.000 | |||
| Agg2 | 0.460 | 0.224 | 0.199 | 1.000 | ||
| InA2 | 0.227 | 0.425 | 0.160 | 0.391 | 1.000 | |
| HA2 | 0.173 | 0.220 | 0.365 | 0.290 | 0.460 | 1.000 |
| SD | 3.338 | 3.568 | 3.474 | 3.265 | 3.683 | 3.405 |
| DZ | ||||||
| Agg1 | 1.000 | |||||
| InA1 | 0.479 | 1.000 | ||||
| HA1 | 0.360 | 0.440 | 1.000 | |||
| Agg2 | 0.172 | 0.189 | 0.010 | 1.000 | ||
| InA2 | 0.053 | 0.203 | 0.089 | 0.406 | 1.000 | |
| HA2 | -0.010 | 0.138 | 0.128 | 0.319 | 0.395 | 1.000 |
| SD | 3.373 | 3.861 | 3.559 | 3.443 | 3.746 | 3.317 |
| Missing values (individuals) for twin1 and twin2 | |||||||
|---|---|---|---|---|---|---|---|
| Agg1 | InA1 | HA1 | Agg2 | InA2 | HA2 | ||
| Total sample size (number of pairs) and marginal number of missing* values | |||||||
| MZ | 3438 | 1689 | 1351 | 1350 | 1689 | 1462 | 1689 |
| DZ | 3995 | 2284 | 1976 | 1973 | 2332 | 2166 | 2332 |
MZ and DZ correlation matrices of within-person, twin correlations (in bold) and cross-twin cross-trait correlations and standard deviations (corrected for sex and age) for Aggression (Agg), Inattention (InA) and hyperactivity (HA) in twin 1 and twin 2
SD standard deviation
*Data collection for InA and HA preceded data collection for Aggression by 4 years; for InA and HA data collection took place in ANTR survey 7, for Aggression in ANTR survey 8