“…; ztime difference. By careful analysis of the items contained in the two dimensions of C-STSS, it can be found that the first dimension-stress dimension (items 1,4,5,7,8,9,11,15,16,17) mainly describes the influence of STS on helpers' daily life and psychological state (including sleep, mood, concentration, enthusiasm, etc.). And dimension 2-invasion and avoidance dimension (items 2, 3, 6, 10, 12, 13, 14) mainly describe the content related to the trauma victims they help.…”