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Table 2 Recognition of stroke by emergency medical dispatchers

From: Medical dispatchers recognise substantial amount of acute stroke during emergency calls

  Final diagnosis of stroke/TIA Total
N, % (95 % CI)
Yes No
Dispatch code for stroke/TIA Yes 1,756 4,049 5,805
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 %)
  1. Abbreviations: TIA transient ischemic attack, Stroke acute ischemic stroke or intracerebral haemorrhage, CI Confidence Interval