Medical dispatchers recognise substantial amount of acute stroke during emergency calls

Table 2 Recognition of stroke by emergency medical dispatchers

		Final diagnosis of stroke/TIA		Total N, % (95 % CI)
		Yes	No	Total N, % (95 % CI)
Dispatch code for stroke/TIA	Yes	1,756	4,049	5,805
Dispatch code for stroke/TIA	No	897	128,766	129.663
Total		2,653	132,815	135.468
Sensitivity				66.2 % (64.4 %–68.0 %)
Positive predictive value				30.2 % (29.1 %–31.4 %)

Abbreviations: TIA transient ischemic attack, Stroke acute ischemic stroke or intracerebral haemorrhage, CI Confidence Interval

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