. 2022 Jan 25;19(3):1334. doi: 10.3390/ijerph19031334

Table 2.

Prevalence of mental health indices among young adults from Germany, Israel, Poland, and Slovenia in a three-month period.

	Total (n = 1723)		Countries								Pearson’s	Cramer’s
	Total (n = 1723)		Germany (n = 418)		Israel (n = 428)		Poland (n = 446)		Slovenia (n = 431)		Pearson’s	Cramer’s
Variable	n	%	n	%	n	%	n	%	n	%	χ² (3)	V
COVID-19 PTSD T1											64.86 ***	0.19
No risk	595	34.53	104	24.88	213	49.77	136	30.49	142	32.95
Risk	1128	65.47	314	75.12	215	50.23	310	69.51	289	67.05
COVID-19 PTSD T2											102.61 ***	0.24
No risk	684	39.70	117	27.99	255	59.58	149	33.41	163	37.82
Risk	1039	60.30	301	72.01	173	40.42	297	66.59	268	62.18
Stress T1											28.49 ***	0.13
Low	288	16.72	64	15.311	88	20.56	43	9.64	93	21.58
High	1435	83.29	354	84.70	340	79.44	403	90.36	338	78.42
Stress T2											28.26 ***	0.13
Low	372	21.59	88	21.053	116	27.10	60	13.45	108	25.06
High	1351	78.41	330	78.95	312	72.890	386	86.55	323	74.94
Anxiety T1											47.47 ***	0.17
No risk	887	51.48	263	62.92	345	80.61	279	62.56	347	80.51
Risk	405	23.51	155	37.08	83	19.39	167	37.44	84	19.49
Anxiety T2											47.47 ***	0.17
No risk	1242	72.08	286	68.42	342	79.91	276	61.88	338	78.42
Risk	481	27.92	132	31.58	86	20.09	170	38.12	93	21.58
Physical activity T1											76.72 ***	0.21
Sufficient	1003	58.21	248	59.33	297	69.39	280	62.78	178	41.230
Insufficient	720	41.79	170	40.67	131	30.61	166	37.22	253	58.70
Physical activity T2											33.44 ***	0.14
Sufficient	1175	68.20	299	71.53	314	73.36	316	70.85	246	57.08
Insufficient	548	31.81	119	28.450	114	26.64	130	29.15	185	42.92
Depression T1											55.60 ***	0.18
No risk	1124	65.24	235	56.22	315	73.60	255	57.18	319	74.01
Risk	599	34.77	183	43.78	113	26.40	191	42.83	112	25.99
Depression T2											54.67 ***	0.18
No risk	1131	65.64	239	57.18	302	70.56	258	57.85	332	77.03
Risk	592	34.36	179	42.82	126	29.44	188	42.15	99	22.97
Suicidal Ideation T1											81.16 ***	0.22
0 = No	1097	63.67	230	55.02	322	75.23	231	51.79	314	72.85
1 = Yes	626	36.33	188	44.98	106	24.77	215	48.21	117	27.15
Suicidal Ideation T2											64.37 ***	0.19
0 = No	1090	63.26	238	56.94	309	72.2	230	51.57	313	72.62
1 = Yes	633	36.74	180	43.06	119	27.8	216	48.43	118	27.38

Note. T1 = Time 1; T2 = Time 2; COVID-19 PTSD = coronavirus-related post-traumatic stress disorder; *** p < 0.001.