. 2021 Apr 22;18(9):4453. doi: 10.3390/ijerph18094453

Table 2.

Means, standard deviations, internal consistency indexes (Cronbach’s alpha) and bivariate correlations.

Variables	$\bar{X}$	SD	α	1	2	3	4	5	6	7	8	9	10	11
1. Workload T1 ^a	3.13	0.49	0.80	-	0.27 **	0.41 **	−0.01	0.42 **	0.33**	0.03	0.17 *	−0.16 *	0.29 **	−0.03
2. Fear of contagion T1 ^a	2.74	0.76	0.80		-	0.49 **	−0.05	0.37 **	0. 16 **	0.46 **	0.24 **	0.05	0.24 **	0.17 **
3. Lack of staff and PPE T1 ^a	3.16	0.73	0.68			-	−0.09 *	0.45 **	0.11	0.31**	0.29 **	−0.19 **	0.32 **	0.05
4. Harmonious passion T1 ^b	5.09	1.20	0.68				-	−0.22 **	−0.04	−0.02	−0.07	0.49 **	−0.32 **	−0.08
5. STS T1 ^a	2.70	0.45	0.84					-	0.24 **	0.12	0.19 *	−0.26 **	0.58 **	0.04
6. Workload T2 ^a	3.18	0.50	0.73						-	0.17 *	0.27 **	−0.11	0.41 **	0.04
7. Fear of contagion T2 ^a	2.56	0.76	0.80							-	0.37 **	−0.07	0.33 **	0.19 *
8. Lack of staff and PPE T2 ^a	2.70	0.83	0.72								-	−0.12	0.36 **	0.08
9. Harmonious passion T2 ^b	5.07	1.17	0.69									-	−0.38 **	0.14
10. STS T2 ^a	2.78	0.42	0.82										-	0.12
11. Posttraumatic growth T2 ^c	4.11	0.84	0.80											-

Note: PPE = Personal Protection Equipment; STS = Secondary Traumatic Stress; T1 = first wave of COVID-19 (April 2020); T2 = second wave of COVID-19 (December 2020). ^a the scale response ranged from 1 to 4; ^b the scale response ranged from 1 to 7; ^c the scale response ranged from 1 to 6; ** p < 0.01; * p < 0.05.