Table 3.
Results of the stepwise multilevel linear regression analysis of depressive symptoms
| Model 1* | Model 2* | |||||
| Estimate† | 95% CI | Estimate† | 95% CI | |||
| Lower | Upper | Lower | Upper | |||
| Age | −0.043 | −0.062 | −0.023 | −0.045 | −0.063 | −0.027 |
| Marriage | ||||||
| Singled | – | – | ||||
| Married/coupled | 0.27 | 0.044 | 0.50 | 0.26 | 0.032 | 0.48 |
| Monthly personal income | ||||||
| ≤$439.49 | – | – | – | – | – | – |
| $439.64–$732.58 | 0.25 | −0.084 | 0.58 | 0.24 | −0.095 | 0.57 |
| $732.73–$1465.31 | 0.039 | −0.42 | 0.49 | 0.020 | −0.42 | 0.46 |
| ≥$1465.46 | 2.34 | 1.08 | 3.59 | 2.30 | 1.05 | 3.55 |
| Years in Shenzhen | −0.0076 | −0.031 | 0.016 | – | – | – |
| Adaption | ||||||
| Yes | – | – | – | – | – | – |
| No | 0.86 | 0.57 | 1.14 | 0.87 | 0.59 | 1.15 |
| Discrimination | ||||||
| Yes | – | – | – | – | – | – |
| No | −0.34 | −0.54 | −0.13 | −0.33 | −0.53 | −0.13 |
| Smoking | ||||||
| Yes | – | – | – | – | – | – |
| No | −0.17 | −0.45 | 0.12 | – | – | – |
| Drinking | ||||||
| Yes | – | – | – | – | – | – |
| No | −0.24 | −0.43 | −0.061 | −0.26 | −0.44 | −0.089 |
| Number of mental health source | −0.015 | −0.15 | 0.12 | – | – | – |
| Loneliness (ULS-6) | 0.46 | 0.43 | 0.50 | 0.46 | 0.43 | 0.50 |
| Impulsiveness (BIS-11) | 0.084 | 0.068 | 0.10 | 0.086 | 0.070 | 0.10 |
| Social support (SSRS) | −0.019 | −0.037 | −0.0023 | −0.022 | −0.038 | −0.0049 |
| Coping | ||||||
| Positive coping | −0.0073 | −0.027 | 0.013 | – | – | – |
| Negative coping | 0.12 | 0.086 | 0.15 | 0.11 | 0.085 | 0.14 |
| Meaning of life (C-MLQ) | −0.014 | −0.025 | −0.0017 | −0.015 | −0.026 | −0.0029 |
| AIC | 16 337.21 | 16 331.71 | ||||
| BIC | 16 457.10 | 16 428.31 | ||||
| Adjusted R-squared | 0.4020 | 0.4003 | ||||
*Model 1 is the initial model of the multilevel linear regression analysis. Model 2 is the final model of the analysis after four iterations.
†Estimate stands for the coefficient of each variable.
AIC, Akaike information criterion; BIC, Bayesian information criterion; BIS-11, Barratt Impulsiveness Scale; C-MLQ, Chinese version of Meaning in Life Questionnaire; SSRS, Social Support Rating Scale; ULS-6, 6-item UCLA Loneliness Scale.