Table 1.

Participation and attrition (number of dropouts) in the inspected iCBT studies.

Literature source	#Participants	#drop-outs
Hesser et al., 2012	99	10
Rheker et al., 2015	112	9 in the support-on-demand group (out of 56), 11 in the no-support group (out of 56)
Weise et al., 2012	124	5
Jasper et al., 2014	128	7
Beukes et al., 2016	44 (of which 37 completed the screening questionnaire)	15
Weise et al., 2016	124	5
Heinrich et al., 2016	112	14