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. 2021 Aug 10;21:163. doi: 10.1186/s12874-021-01355-1

Table 3.

Mean, standard deviation, range and cut-off score of questionnaires scales

Mean Sd Range Cutoff % > Cutoff
GHQ-12 (N = 550) 3.35 3.32 0 − 12 4 39%
IES-R (N = 550) 20.56 17.40 0 − 88 33 22%
GAD-7 (N = 550) 5.84 5.26 0 − 21 10 21%
PSC4 (N = 550) 3.02 0.89 1—5 - -
0 − 27 11 34%a
DES (N = 192) 11.80 12.39 0 − 100 20 20%a
SCL-90 (N = 192) 0.78 0.60 0 − 4 1 27%a

apercentage for the second levels questionnaires are calculated on the total of subject who answered the second level, N = 192 (i.e. not on the total sample of 550)