TABLE 4.

Test of the mediating effect of risk familiarity (COVID-19) on mental health.

Variables	Equation 1			Equation 2			Equation 3
	(Validity criteria: Familiarity with SARS)			(Validity criteria: Mental toughness)			(Validity criteria: Mental health)
	β	S.E.	t	β	S.E.	t	β	S.E.	t
Gender	−0.18	0.07	−5.53	−0.06	0.04	−2.59	−0.19	0.07	−5.75
Age	−0.20	0.03	−5.74	0.16	0.02	7.38	−0.18	0.03	−5.00
Academic qualifications	−0.32	0.04	−8.87	0.08	0.02	3.52	−0.30	0.04	−8.15
Risk familiarity (COVID-19)	0.10	0.04	2.63	0.73	0.02	31.52	0.16	0.06	2.93
Mental toughness							−0.10	0.06	−1.71
Familiarity with SARS							−0.03	0.03	−0.97
Familiarity with SARS × Mental toughness							−0.09	0.03	−2.72
R 2	0.19			0.67			0.20
F	44.427***			379.423***			27.484***

***p < 0.001.