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Table 1 Model fit and proportion of variance for the FPG level accounted by genetic and environmental parameters

From: Heritability and genome-wide association analyses of fasting plasma glucose in Chinese adult twins

Model

Parameters estimates

Goodness of fit index

A% (95% CI)

D% (95% CI)

E% (95% CI)

-2LL

df

AIC

χ2

P

ADE

13.34

(0–70.30)

55.01

(0–73.91)

31.64

(25.99–38.51)

1933.448

757

419.4

  

AE*

67.66

(60.50–73.62)

–

–

32.34

(26.38–39.55)

1936.625

758

420.6

0

1.00

  1. Note: * the best fitted model, which was chosen on the basis of a change in χ2 not representing a significant worsening of fit
  2. FPG fasting plasma glucose; A additive genetic effect; D common or shared environmental effect; E unique environmental or residual effect; −2LL −2 log likelihood; df degree of freedom; AIC Akaike’s information criterion; χ2, difference of χ2 value; P, χ2 test in model fitting