Table 4.

Bootstrapping to test indirect and total effects of environmental mastery on blood ceramide levels that were mediated by sleep quality (PSQI) and BMI, separately or combined.

Effects	Coef, ± SE	95% CI	p-value
Indirect effect
Sleep (PSQI)	− 0.024 ± 0.011	− 0.046, − 0.004	0.022
BMI	− 0.005 ± 0.005	− 0.016, 0.003	ns
Both	− 0.030 ± 0.011	− 0.053, − 0.008	0.008
Total effect
Total	− 0.152 ± 0.038	− 0.229, − 0.078	< 0.001