Challenges in recruiting and retaining adolescents with abuse-related posttraumatic stress disorder: lessons learned from a randomized controlled trial

Table 4 Frequencies (%) of reported facilitators

Facilitator for participation^a	Respondents			p value
Facilitator for participation^a	All (N = 51^b)	Adolescents aged 14–17 (n = 25)	Young adults aged 18–21 (n = 26)	p value
Flexible time scheduling	32 (62.7)	13 (52.0)	19 (73.1)	0.12^c
Financial compensation for taking part in assessments	27 (52.9)	13 (52.0)	14 (53.8)	0.90^c
Consistent and reliable contact person at the respective study site	22 (43.1)	9 (36.0)	13 (50.0)	0.31^c
Same interviewer	20 (39.2)	11 (44.0)	9 (34.6)	0.49^c
Social support by friends and relatives	19 (37.3)	12 (48.0)	7 (26.9)	0.12^c
Thank-you cards	12 (23.5)	6 (24.0)	6 (23.1)	0.94^c
Reimbursement of travel costs	10 (19.6)	4 (16.0)	6 (23.1)	0.73^d
Involvement of caregiver	9 (17.6)	6 (24.0)	3 (11.5)	0.29^d
Reminders of appointments	9 (17.6)	2 (8.0)	7 (26.9)	0.14^d
Empathy of study staff^e	4 (7.8)	1 (4.0)	3 (11.5)	0.61^d
Other^e	2 (3.9)	0 (0)	2 (7.7)	0.49^d
Certificate at the end of treatment	1 (2.0)	0 (0)	1 (3.8)	1.00^d

^aAssessed with the checklist for facilitators for study participation (see Additional file 1). ^bOverall number of respondents was n = 53, but data from n = 2 respondents had to be excluded because of missing information. ^cCalculated from 2-sided Pearson χ2 test. ^dCalculated from 2-sided Fisher’s exact test. ^eCategory added post hoc according to free responses

ISSN: 1753-2000