. 2021 Feb 11;16(2):e0246824. doi: 10.1371/journal.pone.0246824

Table 3. Association between Knowledge and belief about COVID-19 and the psychological impact of the 2019 coronavirus disease (COVID-19) outbreak as well as adverse mental health status during the epidemic (N = 4479).

Variable	Impact of Event			Stress			Anxiety			Depression
Variable	R²	AR²	B (95%CI)	R²	AR²	B (95%CI)	R²	AR²	B (95%CI)	R²	AR²	B (95%CI)
Mode of transmission of COVID-19
*Droplets*
Agree	<0.001	<0.001	-0.09(-0.21 to 0.04)	0.003	0.003	0.19^***(0.09 to 0.29)	0.002	0.002	0.24^**(0.10 to 0.38)	0.003	0.003	0.23^***(0.10 to 0.35)
Disagree or Uncertain	<0.001	<0.001	Reference	0.003	0.003	Reference	0.002	0.002	Reference	0.003	0.003	Reference
*Contact with contaminated surfaces*
Agree	0.001	<0.001	-0.08(-0.18 to 0.02)	0.002	0.001	0.11^**(0.03 to 0.20)	0.001	0.001	0.13^*(0.02 to 0.25)	0.003	0.003	0.20^***(0.09 to 0.30)
Disagree or Uncertain	0.001	<0.001	Reference	0.002	0.001	Reference	0.001	0.001	Reference	0.003	0.003	Reference
*Airborne*
Agree	<0.001	<0.001	-0.003(-0.08 to 0.07)	0.010	0.009	-0.21^***(-0.28 to -0.15)	0.010	0.010	-0.30^***(-0.38 to -0.21)	0.014	0.014	-0.32^***(-0.39 to -0.24)
Disagree or Uncertain	<0.001	<0.001	Reference	0.010	0.009	Reference	0.010	0.010	Reference	0.014	0.014	Reference
Level of confidence in one’s own doctor to diagnose or recognize COVID-19
Very confident	0.012	0.011	-0.08(-0.22 to 0.07)	0.038	0.037	-0.19^**(-0.31 to -0.07)	0.040	0.039	-0.21^*(-0.37 to -0.05)	0.045	0.045	-0.34^***(-0.49 to -0.20)
Somewhat confident			0.16^*(0.02 to 0.31)			0.04(-0.07 to 0.16)			0.19^*(0.03 to 0.35)			-0.03(-0.17 to 0.11)
Not very confident			0.35^***(0.17 to 0.52)			0.54^***(0.40 to 0.69)			0.77^***(0.58 to 0.97)			0.63^***(0.46 to 0.81)
Not confident or uncertain			Reference			Reference			Reference			Reference
Likelihood of contracting COVID-19 during the pandemic
Very possible	0.011	0.010	0.36^***(0.24 to 0.48)	0.036	0.036	0.47^***(0.37 to 0.57)	0.052	0.052	0.74^***(0.61 to 0.87)	0.039	0.038	0.56^***(0.44 to 0.68)
Somewhat possible			0.15^**(0.04 to 0.26)			0.24^***(0.15 to 0.33)			0.37^***(0.25 to 0.48)			0.30^***(0.19 to 0.40)
Not very possible			0.08(-0.03 to 0.19)			0.02(-0.07 to 0.11)			0.08(-0.04 to 0.21)			0.13^*(0.01 to 0.24)
Impossible			0.20^**(0.07 to 0.32)			0.30^***(0.20 to 0.40)			0.58^***(0.44 to 0.71)			0.51^***(0.39 to 0.63)
Uncertain			Reference			Reference			Reference			Reference
Likelihood of survival after contracting COVID-19
Very possible	0.016	0.015	-0.28^**(-0.54 to -0.03)	0.009	0.008	-0.44^***(0.65 to -0.22)	0.006	0.006	-0.280.(-0.58 to 0.01)	0.009	0.009	-0.52^***(-0.78 to -0.26)
Somewhat possible			0.04 (-0.22 to 0.29)			-0.34^***(-0.55 to -0.12)			-01.2(-0.41 to 0.17)			-0.40^**(-0.65 to -0.14)
Not very possible			0.19(-0.09 to 0.47)			-0.11(-0.36 to 0.13)			0.14(-0.19 to 0.46)			-0.11 (-0.40 to 0.18)
Impossible			Reference			Reference			Reference			Reference
Level of satisfaction with the amount of health information available regarding COVID-19
Very satisfied	0.018	0.017	-0.44^***(-0.59 to -0.28)	0.017	0.016	-0.40^***(-0.53 to -0.27)	0.021	0.020	-0.59^***(-0.77 to -0.42)	0.027	0.027	-0.59^***(-0.75 to -0.43)
Somewhat satisfied			-0.31^***(-0.46 to -0.16)			-0.22^***(-0.35 to -0.10)			-0.28^**(-0.45 to -0.11)			-0.28^***(-0.43 to -0.12)
Not very satisfied			0.06(-0.11 to 0.23)			-0.02(-0.16 to 0.13)			-0.001(-0.19 to 0.19)			0.04(-0.13 to 0.22)
Unsatisfied or uncertain			Reference			Reference			Reference			Reference
Level of worry about family members being diagnosed with COVID-10
Very worried	0.017	0.016	0.13(-0.15 to 0.42)	0.044	0.043	-0.11(-0.35 to 0.13)	0.051	0.050	-0.27(-0.59 to 0.05)				0.045	0.044	-0.29^*(-0.58 to -0.003)
Somewhat worried			0.01(-0.28 to 0.30)			-0.37^**(-0.61 to -0.13)			-0.58^***(-0.90 to -0.26)	-0.54^***(-0.83 to -0.25)
Not very worried			0.33^*(0.03 to 0.63)			0.10(-0.15 to 0.34)			0.14(-0.20 to 0.47)	0.09(-0.22 to 0.39)
Not worried			0.63^***(0.31 to 0.95)			0.46^**(0.20 to 0.72)			0.60^**(0.25 to 0.95)	0.45^**(0.13 to 0.76)
No family members			Reference			Reference			Reference	Reference
Did you feel discriminated against by other countries after the outbreak?
Yes	0.005	0.004	0.25^***(0.13 to 0.36)	0.067	0.067	0.76^***(0.67 to 0.85)	0.041	0.041	0.82^***(0.69 to 0.95)	0.054	0.054	0.84^***(0.73 to 0.95)
No	0.005	0.004	Reference	0.067	0.067	Reference	0.041	0.041	Reference	0.054	0.054	Reference
Time spent on monitoring information regarding COVID-19
Less than 1 hour	0.061	0.060	-0.83^***(-0.96 to -0.69)	0.002	0.002	-0.03 (-0.13 to 0.07)	0.004	0.003	-0.24^**(-0.38 to -0.10)	0.004	0.003	-0.03(-0.16 to 0.10)
1–2 hours			-0.63^***(-0.75 to -0.50)			0.13^**(0.04 to 0.23)			-0.12(-0.25 to 0.02)			0.21^**(0.08 to 0.33)
2 hours and above			Reference			Reference			Reference			Reference
Direct contact with people infected by COVID-19
Yes	<0.001	<0.001	0.14(-0.10 to 0.39)	0.012	0.012	0.75^***(0.55 to 0.95)	0.010	0.010	0.94^***(0.67 to 1.21)	0.010	0.010	0.87^***(0.62 to 1.11)
No	<0.001	<0.001	Reference	0.012	0.012	Reference	0.010	0.010	Reference	0.010	0.010	Reference
Indirect contact with people infected by COVID-19
Yes	<0.001	<0.001	-0.06(-0.27 to 0.15)	0.008	0.008	0.53^***(0.36 to 0.71)	0.008	0.008	0.73^***(0.50 to 0.96)	0.006	0.006	0.57^*** (0.36 to 0.78)
No	<0.001	<0.001	Reference	0.008	0.008	Reference	0.008	0.008	Reference	0.006	0.006	Reference
Contact with materials contaminated by COVID-19
Yes	0.003	0.003	0.41^***(0.18 to 0.63)	0.021	0.021	0.94^***(0.75 to 1.12)	0.022	0.022	1.28^***(1.03 to 1.53)	0.022	0.022	1.16^***(0.93 to 1.39)
No	0.003	0.003	Reference	0.021	0.021	Reference	0.022	0.022	Reference	0.022	0.022	Reference

* p<0.05;

**p<0.01;

***p<0.001