Table 3.

Correlations of PTSD symptoms with psychological characteristics among the sample of healthcare workers (N = 4,724).

	IES-6	1.	2.	3.	4.	5.	6.	7.	8.	9.
1. Overall burden during COVID-19 pandemic	0.346***
2. PHQ-2 (depression)	0.421***	0.414***
3. GAD-2 (anxiety)	0.387***	0.369***	0.656***
4. ESSI (social support)	−0.124***	−0.140***	−0.288***	−0.283***
5. I was afraid to become infecteda	0.339***	0.321***	0.312***	0.211***	−0.085**
6. I was afraid to infect relatives or my familya	0.314***	0.278***	0.262***	0.214***	−0.037*	0.623***
7. I had trouble sleepingb	0.364***	0.403***	0.488***	0.455***	−0.203***	0.261***	0.226***
8. I felt physically or mentally exhaustedb	0.379***	0.536***	0.532***	0.532***	−0.212***	0.285***	0.262***	0.632***
9. I smoked morec	0.091***	0.105***	0.125***	0.126***	−0.078***	0.096***	0.108***	0.141***	0.136***
10. I drank more alcohold	0.107***	0.146***	0.198***	0.204***	−0.070***	0.081***	0.085***	0.192***	0.176***	0.294***

IES-6, Impact of Event Scale; PHQ-2, Patient Health Questionnaire; GAD-2, Generalized Anxiety Module; ESSI, ENRICHD Social Support Inventory. Overall burden during the COVID-19 pandemic (0 = not at all, 1 = little, 2 = middle, 3 = strong, 4 = very strong), Items 5–10 (1 = strongly disagree, 2 = rather disagree, 3 = neither agree nor disagree, 4 = rather agree, 5 = strongly agree). Significance threshold (two-tailed):

^*p < 0.05,

^**p < 0.01,

^***p < 0.001.

^aN = 4,575.

^bN = 4,573.

^cN = 4,567.

^dN = 4,569.