Table 3 Twin correlations
Cross-twin correlations | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
MZM | DZM | MZF | DZF | DZOS | ||||||
Estimate | 95 % CI | Estimate | 95 % CI | Estimate | 95 % CI | Estimate | 95 % CI | Estimate | 95 % CI | |
Autistic traits age 8 | .83 | .81/.85 | .37 | .35/.39 | .79 | .76/.82 | .45 | .40/.49 | .48 | .44/.49 |
Autistic traits age 12 | .79 | .77/.82 | .32 | .29/.35 | .76 | .73/.79 | .51 | .47/.55 | .41 | .38/.45 |
Autistic traits age 14 | .91 | .88/.93 | .54 | .51/.56 | .88 | .85/.89 | .62 | .60/.66 | .51 | .47/.55 |
Autistic traits age 16 | .92 | .90/.95 | .51 | .48/.55 | .82 | .80/.87 | .58 | .55/.61 | .46 | .44/.50 |
Anhedonia | .37 | .31/.39 | .19 | .18/.22 | .45 | .42/.46 | .17 | .13/.19 | .14 | .12/.15 |
Negative symptoms | .80 | .78/.82 | .59 | .55/.60 | .81 | .78/.82 | .52 | .47/.54 | .47 | .44/.48 |
Cross-trait cross-twin correlations | ||||||||||
MZM | DZM | MZF | DZF | DZOS | ||||||
Estimate | 95 % CI | Estimate | 95 % CI | Estimate | 95 % CI | Estimate | 95 % CI | Estimate | 95 % CI | |
Autistic traits age 8—anhedonia | .18 | .15/.22 | .07 | .03/.10 | .22 | .19/.23 | .03 | .01/.05 | .08 | .05/.09 |
Autistic traits age 12—anhedonia | .20 | .17/.23 | .00 | −.05/.04 | .23 | .19/.26 | .07 | .03/.09 | .11 | .05/.13 |
Autistic traits age 14—anhedonia | .24 | .15/.27 | .16 | .09/.20 | .32 | .21/.34 | .12 | .08/.15 | .14 | .04/.17 |
Autistic traits age 16—anhedonia | .28 | .24/.29 | .15 | .09/.17 | .31 | .29/.33 | .11 | .06/.12 | .11 | .09/.13 |
Autistic traits age 8—negative symptoms | .22 | .19/.23 | .18 | .15/.19 | .24 | .21/.25 | .19 | .15/.22 | .20 | .18/.22 |
Autistic traits age 12—negative symptoms | .34 | .31/.35 | .24 | .22/.25 | .29 | .27/.31 | .19 | .17/.22 | .19 | .15/.22 |
Autistic traits age 14—negative symptoms | .37 | .31/.44 | .30 | .22/.36 | .32 | .23/.36 | .25 | .18/.29 | .24 | .21/.27 |
Autistic traits age 16—negative symptoms | .43 | .42/.45 | .31 | .29/.34 | .36 | .34/.38 | .30 | .28/.36 | .21 | .19/.23 |