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. 2023 May 4;23:313. doi: 10.1186/s12888-023-04788-8

Table 3.

Comparison of stress-related questions and IES-R in the first (2020) and second (2022) assessment points

First Assessment Second Assessment Welch’s two-sample t-test
Mean SD Mean SD df t p
F1 (anxiety about infection)
10.07 3.03 9.08 3.06 1536.51 6.58 < 0.001
F2 (exhaustion)
4.20 2.51 5.11 2.36 1590.31 -7.59 < 0.001
F3 (workload)
2.38 1.52 3.25 1.55 1532.43 -11.60 < 0.001
F4 (feeling of being protected)
2.05 1.21 2.44 1.16 1578.14 -6.64 < 0.001
IES-R
12.71 13.35 13.93 15.45 1416.13 -1.69 0.91

Abbreviations: df, degree of freedom; IES-R, Impact of Event Scale-Revised; SD, standard deviation