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Table 2 Twin correlations

From: Etiological influences on the stability of autistic traits from childhood to early adulthood: evidence from a twin study

 

MZM

DZM

MZF

DZF

DZOS

Cross-twin, age 9/12

.70 (.65-.74)

.21 (.13–.28)

.65 (.60–.69)

.20 (.12–.28)

.26 (.20–.32)

Cross-twin, age 18

.59 (.52–.64)

.21 (.11–.30)

.57 (.51–.62)

.24 (.15–.33)

.25 (.17–.32)

Cross-trait cross-twin

.32 (.27–.37)

.10 (.03–.17)

.32 (.26–.37)

.09 (.02–.16)

.16 (.10–.21)

  1. 95% confidence intervals are shown in parentheses
  2. Cross-twin, age 9/12 correlation of one twin’s A-TAC score at age 9/12 with their co-twin’s A-TAC score at age 9/12, Cross-twin, age 18 correlation of one twin’s A-TAC score at age 18 with their co-twin’s A-TAC score at age 18, Cross-trait, cross-twin correlation of one twin’s A-TAC score at age 9/12 with their co-twin’s A-TAC score at age 18, MZM monozygotic male, DZM dizygotic male, MZF monozygotic female, DZF dizygotic female, DZOS dizygotic opposite-sex