. Author manuscript; available in PMC: 2016 Dec 8.

Published in final edited form as: Clin Transl Sci. 2015 Dec 8;8(6):647–654. doi: 10.1111/cts.12351

Table 3.

Successful vs Unsuccessful Trials

Characteristic	Successful (N=38)	Unsuccessful (N=54)
Length of time from study open for recruitment to first patient enrolled – median[25^th – 75^th percentile]	63 [22 – 143]	81 [25 –236]
Feasibility assessment prior to trial initiation –n (%) yes	22 (58%)	29 (54%)
Was the restrictiveness of incl/excl criteria a barrier to recruitment –n (%) yes	17 (45%)	29 (54%)
Assessment of burden on participants –n (%) extensive	21 (55%)	25 (48%)
Direct contact PI/Co-PI clinic population – N (%) yes	25 (66%)	32 (59%)
NIH funding vs other- n (%) NIH funded	14 (37%)	16 (30%)
Used automated EMR search/notification – n(%) yes	7 (18%)	14 (26%)