Table 1.

Sample characteristics of participants

Characteristic	Intervention Group	Control Group	p	total
N	34	32		66
age, years (M (SD))	21.4 (1.0)	22.3 (2.7)	0.28	21.9 (2.0)
sex			0.20
male (N (%))	6 (17.6)	10 (31.2)		16 (24.2)
female (N (%))	28 (82.4)	22 (68.8)		50 (75.8)

Number, age (mean value incl. SD) and gender (N (%)) of Intervention (CST-behav), Control Group (CST-exp) and total