Table 3.
Results of Longitudinal Mediation Analyses
| Model (all n = 47) | Predictor | Suicidal ideation in 9- or 18-mo completers | ||
|---|---|---|---|---|
| Unstandardized coefficients (SE) | Completely standardized coefficients (95% CI) | |||
| Overall symptoms | Control variables | Age (baseline), y | 0.010 (0.008) | — |
| Gender (fixed) | −0.325 (0.170)* | — | ||
| Education (baseline) | −0.013 (0.029) | — | ||
| Treatment allocation | −0.082 (0.168) | — | ||
| Suicidal ideation at mo 0 | 0.515 (0.122)*** | — | ||
| 9- or 18-mo data | 0.299 (0.200) | — | ||
| Independent variables | Overall symptoms at mo 0 (direct effect) | 0.001 (0.007) | — | |
| Negative cognitive appraisals at mo 0 | −0.022 (0.034) | — | ||
| Negative metacognitive beliefs at mo 0 | 0.043 (0.023)* | — | ||
| R2 | 0.562*** | |||
| Bootstrap indirect effects of | Overall symptoms > Negative cognitive appraisals | −0.001 (0.002) 95% CI (−0.007, 0.001) |
−0.022 (−0.049, 0.253) | |
| Overall symptoms > Negative metacognitive beliefs | 0.002 (0.003) 95% CI (−0.001, 0.011) |
0.038 (−0.029, 0.235) | ||
| Overall symptoms > Negative cognitive appraisals > Negative metacognitive beliefs |
0.001** (0.001) 95% CI (0.000, 0.006) |
0.028** (0.000, 0.120) | ||
| Total indirect effect | 0.002 (0.003) 95% CI (−0.002, 0.012) |
0.045 (−0.049, 0.253) | ||
| Positive symptoms | Control variables | Age (baseline), y | 0.010 (0.008) | — |
| Gender (fixed) | −0.354** (0.167)a | — | ||
| Education (baseline) | −0.014 (0.029) | — | ||
| Treatment allocation | −0.067 (0.166) | — | ||
| Suicidal ideation at mo 0 | 0.538*** (0.121)a | — | ||
| 9- or 18-mo data | 0.308 (0.196) | — | ||
| Independent variables | Positive symptoms at mo 0 (direct effect) | −0.012 (0.020) | — | |
| Negative cognitive appraisals at mo 0 | −0.020 (0.034) | — | ||
| Negative metacognitive beliefs at mo 0 | 0.045* (0.023)a | — | ||
| R2 | 0.566**a | — | ||
| Bootstrap indirect effects of | Positive symptoms > Negative cognitive appraisals | −0.002 (0.004) 95% CI (−0.017, 0.002) |
−0.013 (−0.135, 0.018) | |
| Positive symptoms > Negative metacognitive beliefs | 0.005 (0.009) 95% CI (−0.005, 0.032) |
0.041 (−0.040, 0.231) | ||
| Positive symptoms > Negative cognitive appraisals > Negative metacognitive beliefs | 0.002 (0.004) 95% CI (−0.002, 0.014) |
0.019 (−0.013, 0.105) | ||
| Total indirect effect | 0.006 (0.009) 95% CI (−0.017, 0.002) |
0.048 (−0.054, 0.236) | ||
| Negative symptoms | Control variables | Age (baseline), y | 0.011 (0.007) | — |
| Gender (fixed) | −0.322* (0.161)a | — | ||
| Education (baseline) | −0.005 (0.029) | — | ||
| Treatment allocation | −0.125 (0.167) | — | ||
| Suicidal ideation at mo 0 | 0.522*** (0.115)a | — | ||
| 9- or 18-mo data | 0.269 (0.194) | — | ||
| Independent variables | Negative symptoms at mo 0 (direct effect) | 0.022 (0.017) | — | |
| Negative cognitive appraisals at mo 0 | −0.024 (0.033) | — | ||
| Negative metacognitive beliefs at mo 0 | 0.044* (0.022)a | — | ||
| R2 | 0.580**a | — | ||
| Bootstrap indirect effects of | Negative symptoms > Negative cognitive appraisals | −0.001 (0.006) 95% CI (−0.015, 0.002) |
−0.009 (−0.118, 0.016) | |
| Negative symptoms > Negative metacognitive beliefs | −0.001 (0.006) 95% CI (−0.014, 0.011) |
−0.013 (−0.125, 0.079) | ||
| Negative symptoms > Negative cognitive appraisals > Negative metacognitive beliefs | 0.001 (0.003) 95% CI (−0.002, 0.011) |
0.011 (−0.018, 0.016) | ||
| Total indirect effect | −0.001 (0.006) 95% CI (−0.012, 0.014) |
−0.010 (−0.111, 0.105) | ||
| General symptoms | Control variables | Age (baseline), y | 0.009 (0.008) | — |
| Gender (fixed) | −0.347* (0.173)a | — | ||
| Education (baseline) | −0.014 (0.029) | — | ||
| Treatment allocation | −0.075 (0.166) | — | ||
| Suicidal ideation at mo 0 | 0.531*** (0.125)a | — | ||
| 9- or 18-mo data | 0.318 (0.203) | — | ||
| Independent variables | General symptoms at mo 0 (direct effect) | −0.004 (0.014) | — | |
| Negative cognitive appraisals at mo 0 | −0.020 (0.034) | — | ||
| Negative metacognitive beliefs at mo 0 | 0.044* (0.023)a | — | ||
| R2 | 0.562**a | — | ||
| Bootstrap indirect effects of | General symptoms > Negative cognitive appraisals | −0.002 (0.004) 95% CI (−0.015, 0.003) |
−0.025 (−0.171, 0.035) | |
| General symptoms > Negative metacognitive beliefs | 0.005 (0.006) 95% CI (−0.001, 0.023) |
0.061 (−0.019, 0.248) | ||
| General symptoms > Negative cognitive appraisals > Negative metacognitive beliefs |
0.003** (0.002)a 95% CI (0.000, 0.013) |
0.035** (0.004, 0.141) | ||
| Total indirect effect | 0.006 (0.007)a 95% CI (−0.031, 0.024) |
0.071 (−0.044, 0.279) | ||
Note: Exact P values for completely standardized indirect effects not available. Significance (P < .05) inferred when 95% confidence intervals exclude zero.
aRemained or became significant (P < .05) after entering other symptom groups as covariates.
*P < .1, **P < .05, ***P < .01.All significant results (P < .05) are highlighted in bold.