Table 1.

Demographic characteristics of participants enrolled in Zagreb and Essen groups

Groups	Age						Gender
	Zagreb		Essen		t	P	Zagreb		Essen		χ2	P
	N	mean±sd	N	mean±sd			Male	Female	Male	Female
≤ 10	23	6.74 ± 1.71	17	7.18 ± 2.04	0.737	0.466	11	12	9	8	0.102	0.749
11–20	15	17.27 ± 2.55	24	17.54 ± 1.84	0.391	0.698	5	10	8	16	0.000	1.000
21–50	41	34.56 ± 9.07	40	35.00 ± 8.63	0.223	0.824	13	28	16	24	0.606	0.436
51–60	21	54.62 ± 2.80	17	54.18 ± 2.46	0.511	0.612	10	11	7	10	0.158	0.691
>60	20	68.10 ± 4.48	22	66.86 ± 5.37	0.806	0.425	9	11	10	12	0.001	0.976
Total	120	36.15 ± 21.19	120	36.15 ± 21.36	0.015	0.988	48	72	50	70	0.069	0.793