Table 3 Multiple linear regression analyses with environmental factors for predicting hikikomori severity

<Environmental factors>

Parent’s psychiatric disorder

0.134

0.179

1.159

0.087

0.344

1.232

Parent’s physical disorder

−0.020

0.837

1.083

0.141

0.116

1.168

Communication between parents and child

−0.064

0.519

1.160

−0.188

0.046*

1.281

Communication between parents

−0.287

0.007**

1.275

−0.108

0.255

1.304

Communication with the community

0.019

0.852

1.224

−0.193

0.026*

1.070