Table 5.

Indirect effect of uncertainty about COVID-19 on sleep status via intolerance of uncertainty and perceived stress

Path	Coefficient	95% confidence interval
		Boot lower limit	Boot upper limit
Uncertainty about COVID-2019 → IU → Sleep	0.009	−0.002	0.020
Uncertainty about COVID-2019 → Perceived stress→Sleep	0.015	0.009	0.021
Uncertainty about COVID-2019 → IU → Perceived stress→Sleep	0.030	0.024	0.037
Total effect	0.067	0.050	0.084
Direct effect	0.013	−0.006	0.032
Total indirect effect	0.054	0.043	0.066