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Table 3 OLS analysis and quantile regression estimation for model 2 (Internet usage)

From: Does digital technology reduce health disparity? Investigating difference of depression stemming from socioeconomic status among Chinese older adults

Variables Dependent variable: depression (sample n = 8853)
OLS Quantile regression
0.5 0.6 0.7 0.8 0.9
(1) (2) (3) (4) (5) (6)
Individual socioeconomic status
 Father’s education −0.168 −0.163 −0.264 −0.138 −0.118 −0.143
(0.132) (0.149) (0.163) (0.188) (0.238) (0.310)
 SRH-16 −0.437*** −0.443*** − 0.451*** −0.526*** − 0.640*** −0.666***
(0.055) (0.062) (0.070) (0.083) (0.099) (0.128)
 Education −0.734*** −0.722*** − 0.874*** −1.120*** −1.660*** −0.803*
(0.175) (0.238) (0.255) (0.376) (0.311) (0.421)
 Income −0.685*** −0.642*** − 0.752*** −0.894*** −1.130*** −1.300***
(0.048) (0.057) (0.061) (0.077) (0.090) (0.114)
 Hukou −0.137 −0.154 −0.238 − 0.266 −0.082 0.256
(0.181) (0.201) (0.215) (0.242) (0.329) (0.407)
Digital technology usage
 Internet usage −5.800** −3.500* −4.690*** −9.620*** −9.370** −12.40***
(2.890) (2.070) (1.680) (2.910) (4.140) (3.890)
Other
 Age 0.014* 0.008 0.011 0.009 0.013 0.033*
(0.007) (0.008) (0.009) (0.011) (0.013) (0.017)
 Gender −1.330*** −1.290*** −1.360*** −1.970*** −2.190*** −2.790***
(0.133) (0.158) (0.175) (0.213) (0.250) (0.315)
 Marital −1.410*** −1.400*** − 1.610*** −1.970*** −2.050*** − 2.520***
(0.161) (0.212) (0.235) (0.307) (0.290) (0.414)
Interaction effect
 Internet usage * education 0.556 −1.460*** −0.142 0.765 4.570*** 4.640*
(2.400) (0.546) (0.719) (1.230) (1.450) (2.620)
 Internet usage * income 0.502** 0.472** 0.431** 0.816*** 0.473 0.824*
(0.206) (0.211) (0.179) (0.271) (0.439) (0.449)
 Internet usage * hukou −0.760* −0.550 −0.440 −0.369 −1.020 −2.680**
(0.454) (0.449) (0.375) (0.625) (0.798) (1.100)
 Constant 16.500*** 15.200*** 18.000*** 22.100*** 27.200*** 31.200***
(0.753) (0.900) (0.951) (1.210) (1.400) (1.760)
 Observations 8853 8853 8853 8853 8853 8853
R2 0.110      
 Pseudo R2   0.595 0.596 0.595 0.607 0.601
  1. a standardize coefficients are reported; standard errors in parentheses
  2. b ***p < 0.01, **p < 0.05, *p < 0.1