Table 2.

Factor analysis of the 15 stress-related questions.

Questions	F1	F2	F3	F4
Factor 1: Anxiety about infection (Cronbach α = 0.82)
The disease's dangerousness	0.476	0.031	−0.058	−0.025
Anxiety about being infected	0.870	−0.064	−0.286	−0.176
The risk for family and relatives' to be infected	0.851	−0.043	−0.279	−0.174
Isolation from family and/or social environment	0.737	−0.107	−0.249	−0.223
The consequences on your functional ability regarding family, work, or social relationships	0.794	−0.055	−0.235	−0.113
Factor 2: Knowledge about COVID-19 (Cronbach α = 0.89)
I believe that I have learned enough knowledge about epidemiology	−0.054	0.826	0.275	0.198
I believe that I have learned enough knowledge about symptom	−0.045	0.892	0.323	0.230
I believe that I have learned enough knowledge about prognosis	−0.086	0.860	0.307	0.221
I believe that I have learned enough knowledge about treatment	−0.056	0.833	0.332	0.256
Factor 3: Feeling of being protected (Cronbach α = 0.87)
Feeling of being protected during work	−0.297	0.342	0.863	0.392
Feeling of being protected by local government	−0.194	0.310	0.886	0.289
Feeling of being protected by environment	−0.321	0.314	0.912	0.355
Factor 4: Attitude toward work (Cronbach α = 0.77)
If you are asked to Wuhan, you will go without any hesitation	−0.200	0.199	0.304	0.868
If you are asked to change your position, which has more chance to contract COVID-19 patients, do you totally agree	−0.201	0.219	0.349	0.870
You think COVID-19 is a good chance to improve your clinical ability	−0.096	0.250	0.321	0.742

Bold, factor loading ≥ 0.40.