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

Table 2 Frequencies (%) of reported recruitment sources

Recruitment source^a	Respondents			p value
Recruitment source^a	All (N = 51^b)	Adolescents aged 14–17 (n = 25)	Young adults aged 18–21 (n = 26)	p value
Internet search	22 (43.1)	9 (36.0)	13 (50.0)	0.31^c
Study website	20 (39.2)	10 (40.0)	10 (38.5)	0.91^c
Flyer	16 (31.4)	10 (40.0)	6 (23.1)	0.19^c
Psychiatrist	13 (25.5)	8 (32.0)	5 (19.2)	0.30^c
Psychotherapist	11 (21.6)	6 (24.0)	5 (19.2)	0.68^c
Parent/caregiver	10 (19.6)	8 (32.0)	2 (7.7)	0.04^d*
Other patients	9 (17.6)	5 (20.0)	4 (15.4)	0.73^d
Social worker	8 (15.7)	5 (20.0)	3 (11.5)	0.47^d
Website of respective study site	8 (15.7)	3 (12.0)	5 (19.2)	0.70^d
Counseling center	6 (11.8)	2 (8.0)	4 (15.4)	0.67^d
Other^e	4 (7.8)	0 (0)	4 (15.4)	0.11^d
Outpatient clinic	4 (7.8)	2 (8.0)	2 (7.7)	1.00^d
Psychiatric clinic	4 (7.8)	3 (12.0)	1 (3.8)	0.35^d
General hospital	3 (5.9)	2 (8.0)	1 (3.8)	0.61^d
Pediatrician	3 (5.9)	2 (8.0)	1 (3.8)	0.61^d
Psychosomatic clinic	3 (5.9)	3 (12.0)	0 (0)	0.11^d
Students’ mailing list	3 (5.9)	0 (0)	3 (11.5)	0.24^d
Youth welfare office	3 (5.9)	2 (8.0)	1 (3.8)	0.61^d
Close friend^e	2 (3.9)	1 (4.0)	1 (3.8)	1.00^d
General practitioner	2 (3.9)	1 (4.0)	1 (3.8)	1.00^d
Newspaper article	2 (3.9)	1 (4.0)	1 (3.8)	1.00^d
Facebook	1 (2.0)	0 (0)	1 (3.8)	1.00^d
Gynecologist	1 (2.0)	1 (4.0)	0 (0)	0.49^d
Newspaper advertisement	1 (2.0)	0 (0)	1 (3.8)	1.00^d
Police department	1 (2.0)	0 (0)	1 (3.8)	1.00^d
Poster	1 (2.0)	0 (0)	1 (3.8)	1.00^d
School counselor/school psychologist	1 (2.0)	1 (4.0)	0 (0)	0.49^d
Teacher	1 (2.0)	0 (0)	1 (3.8)	1.00^d
Local health office	0 (0)	0 (0)	0 (0)	Na

Na not applicable
* p < 0.05
^aAssessed with the checklist for recruitment sources (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