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. 2021 Jan 11;18(2):545. doi: 10.3390/ijerph18020545

Table A2.

Sensitivity test using different buffers for measuring green/blue coverage.

Variables Urban Buffer 0.5 km Urban Buffer 2 km Urban Buffer 3 km Rural Buffer 0.5 km Rural Buffer 2 km Rural Buffer 3 km
Coverage of waterbody in 0.5 km −0.274 0.298
(0.453) (0.489)
Coverage of vegetation in 0.5 km −0.172 0.050
(0.159) (0.292)
Coverage of waterbody in 2 km 0.103 0.176
(0.516) (1.280)
Coverage of vegetation in 2 km −0.087 0.060
(0.207) (0.384)
Coverage of waterbody in 3 km 0.346 0.090
(0.558) (1.580)
Coverage of vegetation in 3 km 0.119 0.053
(0.239) (0.424)
Age −0.014 *** −0.014 *** −0.014 *** 0.003 0.003 0.003
(0.003) (0.003) (0.003) (0.005) (0.005) (0.005)
Gender 0.145 ** 0.144 ** 0.143 ** 0.001 0.003 0.003
(0.046) (0.046) (0.046) (0.065) (0.065) (0.065)
Ethnic group 0.097 0.096 0.100 0.060 0.060 0.060
(0.112) (0.113) (0.113) (0.141) (0.141) (0.142)
Marriage 0.515 + 0.515 + 0.508 + −0.303 −0.296 −0.296
(0.263) (0.263) (0.263) (0.232) (0.232) (0.232)
Local Hukou −0.063 −0.066 −0.066 −0.230 −0.235 −0.234
(0.055) (0.056) (0.055) (0.167) (0.167) (0.167)
No. of person(s) in household 0.003 0.002 0.002 0.009 0.009 0.009
(0.012) (0.012) (0.012) (0.016) (0.016) (0.016)
Living alone −0.021 −0.023 −0.025 −0.059 −0.062 −0.063
(0.048) (0.048) (0.048) (0.068) (0.068) (0.068)
Employed 0.370 *** 0.367 *** 0.362 *** 0.052 0.053 0.052
(0.100) (0.100) (0.101) (0.184) (0.184) (0.184)
Not able to work 0.075 0.075 0.067 −0.295 −0.292 −0.293
(0.104) (0.104) (0.105) (0.189) (0.189) (0.189)
Retired 0.209 * 0.207 * 0.203 * −0.119 −0.116 −0.116
(0.094) (0.094) (0.094) (0.236) (0.236) (0.236)
Homemaker 0.423 *** 0.425 *** 0.419 *** 0.234 0.241 0.241
(0.125) (0.125) (0.125) (0.272) (0.272) (0.272)
<5000 CNY as reference
5000–15,000 CNY 0.049 0.047 0.050 0.086 0.086 0.086
(0.081) (0.081) (0.081) (0.074) (0.074) (0.074)
15,000–30,000 CNY −0.028 −0.031 −0.027 0.111 0.109 0.109
(0.088) (0.088) (0.088) (0.120) (0.120) (0.120)
>30,000 CNY 0.074 0.071 0.077 −0.366 −0.369 −0.367
(0.102) (0.102) (0.103) (0.249) (0.249) (0.250)
No answer 0.115 0.116 0.122 −0.155 −0.158 −0.158
(0.089) (0.089) (0.089) (0.105) (0.105) (0.105)
Below elementary school as reference
Elementary school −0.114 + −0.110 + −0.110 + 0.042 0.040 0.040
(0.066) (0.066) (0.066) (0.071) (0.071) (0.071)
Middle school −0.010 −0.005 −0.004 0.079 0.078 0.077
(0.077) (0.077) (0.077) (0.101) (0.101) (0.101)
High school 0.076 0.080 0.079 0.317 0.318 0.317
(0.100) (0.099) (0.100) (0.362) (0.364) (0.363)
Technical secondary school −0.068 −0.062 −0.061 0.608 * 0.606 * 0.604 *
(0.099) (0.098) (0.098) (0.276) (0.275) (0.275)
Technical Junior college −0.307 −0.304 −0.298 −0.849 −0.848 −0.847
(0.305) (0.305) (0.305) (0.547) (0.546) (0.546)
Junior college −0.044 −0.040 −0.042 0.495 0.492 0.490
(0.112) (0.112) (0.112) (0.463) (0.463) (0.463)
College −0.079 −0.077 −0.079 0.800 0.796 0.796
(0.121) (0.121) (0.121) (0.743) (0.743) (0.743)
Graduate 0.071 0.071 0.074
(0.662) (0.663) (0.663)
Pension benefit 0.070 0.071 0.071 −0.074 −0.076 −0.075
(0.060) (0.060) (0.060) (0.083) (0.084) (0.084)
Medical insurance 0.065 0.072 0.071 0.127 0.125 0.125
(0.071) (0.071) (0.071) (0.106) (0.106) (0.106)
Owns car 0.075 0.076 0.077 0.172 0.175 0.174
(0.086) (0.086) (0.086) (0.160) (0.160) (0.160)
Owns housing property 0.036 0.038 0.039 0.070 0.072 0.072
(0.041) (0.041) (0.041) (0.067) (0.068) (0.068)
The nearest distance to road (log) 0.031 0.030 0.029 −0.016 −0.015 −0.015
(0.024) (0.023) (0.023) (0.032) (0.032) (0.032)
GDP per km2 0.001 * 0.001 * 0.001 * 0.001 0.001 0.001
(0.000) (0.000) (0.000) (0.000) (0.000) (0.000)
Number of person(s) per km2 0.000 0.000 0.000 −0.000 0.000 0.000
(0.000) (0.000) (0.000) (0.000) (0.000) (0.000)
Constant 1.787 *** 1.781 *** 1.747 *** 2.207 ** 2.195 ** 2.200 **
(0.464) (0.465) (0.466) (0.758) (0.765) (0.776)
Observations 1061 1061 1061 712 712 712
Adjusted R2 0.108 0.107 0.107 0.096 0.095 0.095
F test model 2.02 2.01 2.01 1.71 1.71 1.71
p-value of F model 0.000 0.000 0.000 0.000 0.000 0.000
Community type dummy Entered Entered Entered Entered Entered Entered
Housing type dummy Entered Entered Entered Entered Entered Entered
City dummy Entered Entered Entered Entered Entered Entered

Standard errors in parentheses; *** p < 0.001, ** p < 0.01, * p < 0.05, + p < 0.1.