Table 4:
Probit model estimation results of psychological disorder of the Chinese elderly
| Variables | All samples | Urban samples | Rural samples | |||
|---|---|---|---|---|---|---|
| coefficient | dy/dx | coefficient | dy/dx | coefficient | dy/dx | |
| Urban-rural | −0.233*** (−6.06) | −0.074*** (−6.16) | ||||
| SO2 drainage | −0.035*** (−6.35) | −0.011*** (−6.36) | −0.026*** (−3.52) | −0.007*** (−2.94) | −0.04*** (−5.67) | −0.014*** (−5.68) |
| Square of SO2 drainage | 0.0007*** (5.71) | 0.0002*** (5.71) | 0.00036 (1.62) | 0.0001 (1.62) | 0.0008*** (5.51) | 0.0003*** (5.52) |
| Age | −0.011*** (−3.88) | −0.0037*** (−3.88) | −0.012** (−2.50) | −0.003** (−2.50) | −0.012*** (−3.24) | −0.0044*** (−3.24) |
| Gender | −0.339*** (−6.71) | −0.11*** (−6.73) | −0.268*** (−3.29) | −0.076*** (−3.30) | −0.379*** (−5.83) | −0.133*** (−5.86) |
| Marriage | −0.15*** (−3.69) | −0.049*** (−3.69) | −0.144** (−2.14) | −0.04** (−2.14) | −0.15*** (−2.94) | −0.053*** (−2.94) |
| Primary school | −0.039 (−0.96) | −0.0127 (−0.96) | −0.121* (−1.65) | −0.033* (−1.67) | 0.016 (0.32) | 0.006 (0.32) |
| Middle school | −0.217*** (−3.69) | −0.067*** (−3.90) | −0.297*** (−3.29) | −0.078*** (−3.55) | −0.124 (−1.53) | −0.042 (−1.57) |
| Vocational education, junior college and above | −0.335*** (−3.28) | −0.098*** (−3.74) | −0.301** (−2.50) | −0.076*** (−2.82) | −0.818** (−2.88) | −0.215** (−4.47) |
| Physical disability | 0.359*** (7.83) | 0.125*** (7.42) | 0.386*** (5.23) | 0.12*** (4.82) | 0.34*** (5.78) | 0.125*** (5.57) |
| Social activity | −0.187*** (−5.42) | −0.061*** (−5.40) | −0.292*** (−5.01) | −0.084*** (−4.90) | −0.114*** (−2.64) | −0.04*** (−2.64) |
| Smoking | 0.032 (0.69) | 0. 01 (0.69) | −0.031 (−0.42) | −0.008 (−0.42) | 0.059 (0.98) | 0.02 (0.98) |
| Drinking | −0.092** (−2.35) | −0.03** (−2.36) | −0.085 (−1.29) | −0.023 (−1.30) | −0.093* (−1.89) | −0.032* (−1.90) |
| Chronic disease 1 | 0.148*** (3.71) | 0.047*** (3.78) | 0.237*** (3.51) | 0.064*** (3.66) | 0.093* (1.87) | 0.032* (1.89) |
| Chronic disease 2 | 0.31*** (7.15) | 0.106*** (6.86) | 0.281*** (4.09) | 0.084*** (3.88) | 0.332*** (5.91) | 0.12*** (5.72) |
| Assets | −0.0018** (−2.24) | −0.0006** (−2.25) | −0.0008 (−1.02) | −0.0002 (−1.02) | −0.007*** (−3.17) | −0.002*** (−3.18) |
| Employment | −0.032* (−0.84) | −0.01* (−0.84) | 0.104 (1.59) | 0. 03 (1.56) | −0.122** (−2.56) | −0.043** (−2.54) |
| R2 | 0.0727 | 0.0749 | 0.0648 | |||
| LRchi2 | 570.03 | 212.97 | 318.46 | |||
| Obs. | 6630 | 2700 | 3930 | |||
Note:
1). Z statistics in parentheses.
2). *P<0.05, **P<0.01, ***P<0.001. Two-tailed test