Table 6 Results of Sobel test and bootstrap test for mediation effect
Year | Sobel test statistic | 辫鈥夆垝鈥塿补濒耻别 | Bootstrap 95% CIs | Mediation ratio (%) |
|---|---|---|---|---|
2014 | 1.28 | 0.20 | (鈭掆��0.04, 0.08) | 33.33 |
2016 | 鈥夆垝鈥�0.95 | 0.34 | (鈭掆��0.05, 0.00) | 28.57 |
2018 | 5.42 | 鈥�&濒迟;鈥�0.001 | (0.05, 0.16) | 220.00 |
2021 | 5.95 | 鈥�&濒迟;鈥�0.001 | (0.05, 0.13) | 60.00 |
2023 | 5.77 | 鈥�&濒迟;鈥�0.001 | (0.04, 0.10) | 58.33 |
Overall | 9.95 | 鈥�&濒迟;鈥�0.001 | (0.06, 0.09) | 100.00 |