Table 6 Bootstrap check of income, social networking time and HRQoL

Income

− 0.127^***

−0.118^***

− 0.106^***

−0.102^***

− 0.069^*

−0.065^*

0.219^***

0.223^***

(0.164)

(0.165)

(0.139)

(0.152)

(0.112)

(0.109)

(0.022)

(0.023)

Place of living (urban)

0.002

0.002

0.016

0.016

0.012

0.012

0.049^**

0.049^**

(0.389)

(0.392)

(0.334)

(0.352)

(0.233)

(0.226)

(0.057)

(0.060)

Age

0.082

0.124

−0.010

0.013

−0.043

−0.026

−0.443^***

−0.424^***

(0.061)

(0.061)

(0.061)

(0.057)

(0.036)

(0.036)

(0.009)

(0.009)

Age²

−0.141

−0.177

0.066

0.046

0.064

0.050

0.354^**

0.338^**

(0.001)

(0.001)

(0.001)

(0.001)

(0.0004)

(0.0004)

(0.0001)

(0.0001)

Sex (male)

−0.054^**

−0.058^***

−0.026

− 0.028

−0.018

− 0.020

−0.012

− 0.014

(0.241)

(0.239)

(0.234)

(0.218)

(0.153)

(0.142)

(0.036)

(0.035)

Race (white)

0.066^***

0.065^***

0.032

0.032

0.031

0.031

0.024

0.024

(0.287)

(0.297)

(0.244)

(0.260)

(0.154)

(0.153)

(0.044)

(0.044)

Marital status (married)

−0.027

−0.021

0.005

0.008

−0.024

−0.022

− 0.031

−0.029

(0.283)

(0.271)

(0.232)

(0.237)

(0.160)

(0.164)

(0.041)

(0.041)

Working status (working)

−0.116^***

−0.117^***

− 0.207^***

−0.208^***

− 0.285^***

−0.285^***

0.088^***

0.087^***

(1.158)

(1.244)

(1.413)

(1.412)

(1.346)

(1.304)

(0.128)

(0.121)

Social networking time

0.067^**

0.037

0.026

0.030

(0.002)

(0.001)

(0.001)

(0.002)

Year fixed effects

yes

yes

yes

yes

yes

yes

yes

yes

N

3037

3037

3030

3030

3032

3032

3036

3036

R ²

0.045

0.049

0.059

0.061

0.092

0.093

0.063

0.064