Table 3.
Hyperactivity–impulsivity | Inattention | |
---|---|---|
Parent | ||
MZ | ||
Male | 0.76 (0.70 to 0.81) | 0.52 (0.42 to 0.61) |
Female | 0.75 (0.69 to 0.80) | 0.59 (0.51 to 0.67) |
DZ | ||
Male | 0.22 (0.10 to 0.38) | 0.03 (−0.11 to 0.17) |
Female | 0.24 (0.10 to 0.38) | 0.02 (−0.13 to 0.16) |
DZ opposite-sex | 0.14 (0.01 to 0.27) | 0.04 (−0.10 to 0.17) |
Cross-trait phenotypic correlations | Cross-trait cross-twin correlations | |
---|---|---|
MZ | ||
Male | 0.60 (0.52 to 0.68) | 0.46 (0.36 to 0.56) |
Female | 0.58 (0.50 to 0.66) | 0.46 (0.36 to 0.56) |
DZ | ||
Male | 0.66 (0.58 to 0.74) | 0.15 (0.01 to 0.29) |
Female | 0.50 (0.39 to 0.61) | 0.13 (−0.02 to 0.27) |
DZ opposite-sex | 0.58 (0.48 to 0.66) | 0.26 (0.13 to 0.39) |
Hyperactivity–impulsivity | Inattention | |
---|---|---|
Teacher | ||
MZ | ||
Male | 0.53 (0.43 to 0.62) | 0.48 (0.37 to 0.58) |
Female | 0.60 (0.51 to 0.68) | 0.68 (0.60 to 0.74) |
DZ | ||
Male | 0.39 (0.25 to 0.52) | 0.13 (−0.02 to 0.28) |
Female | 0.34 (0.19 to 0.48) | 0.23 (0.07 to 0.38) |
DZ opposite-sex | 0.40 (0.27 to 0.52) | 0.27 (0.12 to 0.40) |
Cross-trait phenotypic correlations | Cross-trait cross-twin correlations | |
---|---|---|
MZ | ||
Male | 0.57 (0.47 to 0.65) | 0.28 (0.15 to 0.40) |
Female | 0.36 (0.25 to 0.47) | 0.23 (0.10 to 0.36) |
DZ | ||
Male | 0.61 (0.50 to 0.69) | 0.20 (0.05 to 0.35) |
Female | 0.45 (0.31 to 0.57) | 0.13 (−0.04 to 0.28) |
DZ opposite-sex | 0.59 (0.49 to 0.67) | 0.24 (0.10 to 0.40) |
Phenotypic correlation, within-twin correlation of hyperactivity–impulsivity and inattentiveness; cross-trait cross-twin correlation, hyperactivity–impulsivity in Twin 1 correlated with inattentiveness in Twin 2