Table 4 ACE decomposition of burden of social isolation (T1, T2)

Twin correlations

MZr

0.370

[0.236,0.505]

0.334

[0.197,0.471]

0.392

[0.317,0.466]

0.362

[0.286,0.437]

DZr

0.250

[0.120,0.380]

0.219

[0.082,0.357]

0.261

[0.191,0.331]

0.243

[0.170,0.315]

ACE decomposition (unstandardized variance components)

a²

0.348

[0.237,0.467]

0.321

[0.212,0.437]

0.366

[0.302,0.432]

0.355

[0.292,0.421]

c²

e²

0.603

[0.510,0.716]

0.597

[0.504,0.710]

0.575

[0.522,0.635]

0.575

[0.522,0.635]

Total variance (a² + c² + e²) (residual variance)

0.951

0.918

0.941

0.930

Variance explained^a

3.5%

1.2%

ACE decomposition (standardized variance components)

A

0.366

[0.256,0.465]

0.350

[0.237,0.452]

0.389

[0.327,0.446]

0.382

[0.320,0.440]

C

E

0.634

[0.535,0.744]

0.650

[0.548,0.763]

0.611

[0.554,0.673]

0.618

[0.560,0.680]

A + C + E

1.000

1.000

1.000

1.000

N

798

798

2520

2520

N twin pairs

399

399

1260

1260