Experience with a hybrid recruitment approach of patient-facing web portal screening and subsequent phone and medical record review for a neurosurgical intervention trial for chronic ischemic stroke disability (PISCES III)

Table 2 Sources of potential participant referrals screened at tier 1

Source of referral	DQ1	PCC referral	Source total	Success ratio
A current PISCES III study clinic	10	9	19	0.47
Another doctor or rehabilitation specialist or institution	125	44	171	0.26
Facebook, Instagram, or other social media	1877	541	2397	0.23
Hospital or rehabilitation website	97	29	126	0.23
Radio ad	27	7	34	0.21
Google or other search engine	1425	305	1761	0.17
Newspaper or print flyer	11	2	13	0.15
ClinicalTrials.gov	13	2	15	0.13
TV ad	333	47	380	0.12
Friend or family referral	129	15	144	0.10

DQ1 disqualified by tier 1 survey, PCC primary central screening center (tier 2). Source total is the total number of referrals attributed to the source; Success ratio is the number of enrolled participants attributed to that source divided by the Source total

ISSN: 1745-6215