Table 3.

Exploratory factor analysis of the PHERPS (n = 252).

Item	Factor loading coefficient
	Dread risk perception	Severe risk perception	Unknown risk perception
Item 1	0.873	0.065	0.002
Item 2	0.872	0.009	0.079
Item 3	0.436	0.284	0.134
Item 4	0.089	0.875	0.135
Item 5	0.179	0.871	0.164
Item 6	0.303	0.570	0.426
Item 7	0.179	0.346	0.619
Item 8	0.034	0.247	0.812
Item 9	0.021	0.005	0.840
Eigenvalue (rotated)	1.847	2.116	2.000
Variance explanation percentage % (rotated)	20.53	23.51	22.22
Cumulative variance explanation percentage % (rotated)	20.53	44.04	66.26
KMO value	0.747
Bartlett’s sphericity test χ2	1390.014
df	36.000
P	$<$0.001