The Dyadic Effects of Self-Efficacy on Quality of Life in Advanced Cancer Patient and Family Caregiver Dyads: The Mediating Role of Benefit Finding, Anxiety, and Depression

Table 5

The bios-corrected bootstrap tests of the total effects, total indirect effects, and direct effects for cancer patients and family caregivers.

Effect	Submodel MCS						Submodel PCS
	Estimate		95% CI low	95% CI high	value		Estimate	95% CI low	95% CI high	value
5(a): effects on QOL mediated by BF (model a)
CP actor effect
Total effect	0.149		0.112	0.192	0.001		0.091	0.053	0.133	0.001
Total IEs	0.005		−0.009	0.021	0.452		0.003	−0.012	0.019	0.645
Direct effect c’	0.144		0.104	0.191	0.001		0.088	0.046	0.131	0.001
FC actor effect
Total effect	0.125		0.087	0.157	0.001		0.122	0.079	0.165	0.001
Total IEs	0.020		0.000	0.040	0.051		0.008	−0.012	0.028	0.429
Direct effect c’	0.105		0.065	0.141	0.001		0.114	0.069	0.159	0.001
CP partner effect
Total effect	−0.022		−0.063	0.017	0.251		−0.023	−0.066	0.025	0.374
Total IEs	−0.015		−0.034	0.001	0.066		0.005	−0.014	0.025	0.646
Direct effect c’	−0.007		−0.051	0.037	0.769		−0.027	−0.074	0.025	0.311
FC partner effect
Total effect	0.019		−0.013	0.050	0.256		−0.012	−0.048	0.024	0.462
Total IEs	−0.003		−0.017	0.011	0.635		0.013	0.000	0.028	0.056
Direct effect c’	0.022		−0.012	0.056	0.190		−0.025	−0.063	0.014	0.170
5(b): effects on QOL mediated by PD (model b)
CP actor effect
Total effect		0.149	0.112	0.192		0.001	0.091	0.053	0.133	0.001
Total IEs		0.098	0.072	0.129		0.001	0.073	0.051	0.105	0.001
Direct effect c’		0.051	0.013	0.090		0.011	0.018	−0.029	0.064	0.455
FC actor effect
Total effect		0.125	0.087	0.157		0.001	0.122	0.079	0.165	0.001
Total IEs		0.069	0.046	0.095		0.001	0.051	0.032	0.075	0.001
Direct effect c’		0.056	0.021	0.089		0.004	0.071	0.029	0.113	0.001
CP partner effect
Total effect		−0.022	−0.063	0.017		0.251	−0.023	−0.066	0.025	0.374
Total IEs		0.005	−0.020	0.026		0.730	0.008	−0.017	0.030	0.520
Direct effect c’		−0.027	−0.068	0.013		0.184	−0.031	−0.076	0.018	0.221
FC partner effect
Total effect		0.019	−0.013	0.050		0.256	−0.012	−0.048	0.024	0.462
Total IEs		0.032	0.007	0.057		0.012	0.021	−0.002	0.047	0.078
Direct effect c’		−0.013	−0.048	0.018		0.416	−0.033	−0.070	0.005	0.079
5(c): total IEs on anxiety and depression (model b)
CP actor effect
Anxiety		−0.104	−0.123	−0.084		0.001	−0.101	−0.121	−0.080	0.001
Depression		−0.112	−0.133	−0.091		0.001	−0.114	−0.135	−0.093	0.001
FC actor effect
Anxiety		−0.071	−0.090	−0.051		0.001	−0.072	−0.090	−0.053	0.001
Depression		−0.076	−0.099	−0.052		0.001	−0.081	−0.103	−0.056	0.001
CP partner effect
Anxiety		0.007	−0.014	0.028		0.476	0.006	−0.014	0.026	0.537
Depression		0.007	−0.014	0.029		0.470	0.007	−0.016	0.029	0.543
FC partner effect
Anxiety		−0.020	−0.037	−0.002		0.036	−0.017	−0.035	0.002	0.068
Depression		−0.021	−0.039	−0.002		0.038	−0.019	−0.038	0.002	0.071

Note: BF = benefit finding; CI = confidence interval; CP = cancer patients; FC = family caregivers; IEs = indirect effects; MCS = mental component summary; PCS = physical component summary; PD = psychological distress. The bootstrap estimates presented here are based on 2,000 bootstrap samples.