Table 4.

Testing the moderated mediation effect of CF.

Variable	β	SE	t
Mediator variable model (Outcome: ISI)
PS	0.274	0.068	3.976***
CF	0.045	0.048	0.944
PS × CF	0.003	0.002	1.647
Dependent variable model (Outcome: PTSD)
PS	−0.132	0.096	−1.365
ISI	0.577	0.094	6.098***
CF	−0.103	0.054	−1.890
PS × CF	0.011	0.003	3.559***
ISI × CF	0.003	0.002	1.185

PS, perceived stress; ISI, insomnia severity index; CF, compassion fatigue.

^***P < 0.001.