Table 2 Difference in PTSD by characteristics

Mean ± SD

t

p

Intrapersonal and Interpersonal characteristics

 Age (years)

  Below the median (< 28)

13.65 ± 16.40

-1.59

.114

  Above the median (≥ 28)

17.69 ± 16.58

 Work experience (years)

  Below the median (< 4)

14.98 ± 17.42

-0.61

.542

   Above the median (≥ 4)

16.54 ± 15.75

 Gender

  Male

4.33 ± 7.76

-1.73

.085

  Female

16.19 ± 16.67

 Marital status

   Unmarried

14.39 ± 15.91

-1.66

.098

   Married

19.02 ± 17.76

 Cohabitation status

   Living alone

15.54 ± 17.51

-0.07

.943

   Living with family

15.81 ± 16.47

 Education level

   Associate’s degree or lower

11.92 ± 15.54

-1.26

.209

  Bachelor’s degree or higher

16.44 ± 16.70

COVID-19-related characteristic

 Experience of quarantine

  No

14.37 ± 15.83

-1.83

.070

  Yes

19.60 ± 18.07

 Training/orientation of infection control

  No

14.93 ± 16.08

-0.64

.522

  Yes

16.57 ± 17.08

 Level of nurse staffing

  Appropriate

11.64±14.14

-2.78

.006

  Inappropriate

18.71±17.59

 Availability of PPE

  Appropriate

13.88±16.61

-1.38

.171

  Inappropriate

17.40±16.45

 Convenience of EHR

  Convenience

13.63±15.21

-2.34

.021

  Inconvenience

19.83±18.33

 Experience of witnessing COVID-19 patient death

  No

13.22 ± 14.94

-3.10

.003

  Yes

22.95 ± 18.87

 Length of working period in the COVID-19 isolation ward

  Below the median

16.50 ± 17.90

0.54

.587

  Above the median

15.10 ± 15.33