Table 2.

TCD Screening Barriers and Association with TCD Adherence (N = 37).

	Total (N = 37)	Nonadherent (n = 20)	Adherent (n = 17)
Lack of familiarity with recommendation	1 (3%)	0	1
Lack of agreement with recommendation	4 (11%)	4	0
Lack of self-efficacy
To interpret TCD results	12 (32%)	6	6
To apply TCD results to guide therapy	8 (22%)	5	3
To interpret or apply TCD results	14 (38%)	8	6
Lack of outcome expectancy*	18 (49%)	13	5
Presence of external barriers
Lack of equipment or space	5 (14%)	4	1
Lack of time	8 (22%)	5	3
Lack of educational materials	1 (3%)	1	0
Lack of support staff	10 (27%)	7	3
Lack of reimbursement	2 (5%)	2	0
Other issues	7 (19%)	4	3
Lack of one or more of the above	14 (38%)	8	6

Abbreviation: TCD, transcranial Doppler.

^*P < .05 based on Fisher’s exact test.