A pilot study evaluating the use of ABCD2 score in pre-hospital assessment of patients with suspected transient ischaemic attack: experience and lessons learned

Table 2 Reasons patients were not recruited to the pilot study

Reason	Month 1		Month 2		Month 3		Month 4
County	A	B	A	B	A	B	A	B
Ongoing symptoms	13	4	12	12	3	2	1/13	2
Prior stroke/TIA^a	14	9	21	9	3	2	1/0^b	1
Anticoagulants^a	11	4	7	6	5	2	3/1	1
Atrial fibrillation^a	3	7	1	1	0	0	0/0	0
No consent returned	0	0	0	0	0	0	0/0	0
Patient declined	1	0	0	0	0	0	0/0	0
Not conveyed	4	4	0	1	2	1	0/0	0
Crew not trained	10	0	0	0	1	0	0/0	0
Not known	3	4	5	7	0	0	7/10	1

County A—EMS crews trained, County B—EMS crews not trained, merely handing study packs to patients
^aExclusion criteria subject to substantial protocol amendment approved by ethics committee
^bDenotes numbers before and after study protocol amended to relax exclusion criteria

ISSN: 2040-7378