Table 2 Total effect, direct effect, indirect effect
|  | Path | β(standardization) | Bootstrop 95% CI | P |
|---|---|---|---|---|
PHQ-15 → SAIB | Total effect (c) | −0.56 | − 0.63~ − 0.48 | < 0.001 |
Direct effect (c’) | −0.32 | − 0.43~ − 0.21 | < 0.001 | |
Indirect effect (a x b) | −0.24 | − 0.31~ − 0.18 | < 0.001 |