Insomnia and anxiety among COVID-19 patients in China: the chain mediating effect of psychological capital and self-esteem

Table 4 Comparison of indirect effects of insomnia on anxiety mediated by psychological capital and self-esteem

	Product of Coefficients		Bootstrapping 95% BC Confidence Interval(CI)		Proportion of indirect effect
	Point Estimate	Boot SE	BootLL CI	BootUL CI	Proportion of indirect effect
Effect
Total indirect effect of X on Y	0.205	0.035	0.138	0.276	25.25%
Indirect effect 1: X→M1→Y	0.042	0.018	0.013	0.080	5.16%
Indirect effect 2: X→M2→Y	0.100	0.023	0.056	0.145	12.26%
Indirect effect 3: X→M1→M2→Y	0.063	0.017	0.031	0.100	7.72%
Contrasts
Model 1 versus Model 2	-0.058	0.031	-0.117	0.005
Model 1 versus Model 3	-0.021	0.021	-0.066	0.018
Model 2 versus Model 3	0.037	0.027	-0.018	0.088

Note: N = 687. Number of bootstrap samples for bias corrected bootstrap confidence intervals: 10,000. Level of confidence for all confidence intervals: 95%
X = insomnia, M1 = psychological capital, M2 = self-esteem, Y = anxiety. Model 1 = insomnia - psychological capital - anxiety; Model 2 = insomnia - self-esteem - anxiety; Model 3 = insomnia - psychological capital - self-esteem - anxiety. LL = lower level; UL = upper level

ISSN: 1472-6955