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Table 2 Details of source and type of all 153 strokes (self-reported and found in HES) identified between 2002 and 2009

From: Validating self-reported strokes in a longitudinal UK cohort study (Whitehall II): Extracting information from hospital medical records versus the Hospital Episode Statistics database

Source of stroke information Number Percent
Self-report + other sources (see above) 106 67.6%
HES record but no self-report 47 32.4%
  145 100.0%
Type of stroke   
Non-specified 32 20.9%
Ischaemic 6 55.5%
Cerebral infarction 79
Haemorrhagic 3 23.5%
Primary intracranial haemorrhage 22
Subarachnoid haemorrhage 11
  153 100%