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Table 6 Summary of variance component analysis (AE models and twin pair correlations)

From: Validation and psychometric properties of the Somatic and Psychological HEalth REport (SPHERE) in a young Australian-based population sample using non-parametric item response theory

 

Parameter Estimates

Twin pair correlations

A

E

rMZ

rDZ

Anxiety depression

 8–12 years

0.41 [0.32,0.49]

0.59 [0.51,0.68]

0.43

0.22

 13–14 years

0.42 [0.33,0.5]

0.58 [0.5,0.67]

0.38

0.32

 15–16 years

0.29 [0.2,0.38]

0.71 [0.62,0.8]

0.28

0.20

 17–28 years

0.37 [0.21,0.51]

0.63 [0.49,0.79]

0.39

0.18

Chronic fatigue

 8–12 years

0.42 [0.33,0.51]

0.58 [0.49,0.67]

0.42

0.25

 13–14 years

0.51 [0.43,0.59]

0.49 [0.41,0.57]

0.53

0.29

 15–16 years

0.35 [0.25,0.44]

0.65 [0.56,0.75]

0.38

0.15

 17–28 years

0.27 [0.11,0.41]

0.73 [0.59,0.89]

0.27

0.07

  1. Estimates of proportion of variance explained by additive genetics (A) and unique environment (E) calculated from AE models. When AE was the “best model” (i.e. most parsimonious model with no significant difference of fit with full model) the parameters appear in bold. Full tables that include ACE, ADE estimates and model fit comparison are available in Additional file 20
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BMC Psychiatry

ISSN: 1471-244X

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