Table 2.

Mediation effects of 6 potential mediators (tested separately) with group as independent variable and Patient Health Questionnaire-2 score as dependent variable, based on multilevel structural equation model analysis on data containing all 5 measurement moments.

Potential mediator	a × ba	SE	P value
Behavioral activation (BADSb)	0.31	0.11	.006c
Relaxation	0.05	0.08	.55
Catastrophizing (CERQ-shortd)	−0.005	0.06	.92
Positive refocusing (CERQ-short)	0.10	0.08	.17
Goal re-engagement (GDGRSe)	0.29	0.11	.009c
Coping self-efficacy	0.12	0.08	.13

^aCoefficient for the product term testing the mediation effect.

^bBADS: Behavioral Activation for Depression Scale.

^cP<.05.

^dCERQ-short: Cognitive Emotion Regulation Questionnaire short version.

^eGDGRS: Goal Disengagement and Goal Re-engagement Scale.