Table 3 The case fatality rates of SAH in patients over 70 years old
Age category of the patients (years)
70–7475–7980–8485–8990+
Total number of SAH episodes (% of total events in brackets)1782 (10%)1480 (8%)1122 (6%)488 (3%)190 (1%)
Cumulative number of patients dying within the specified number of days (% of patients within age group)
0* days352 (20%)313 (21%)246 (22%)107 (22%)46 (24%)
2 days496 (28%)445 (30%)355 (32%)149 (31%)65 (34%)
7 days600 (34%)580 (39%)474 (42%)207 (42%)89 (47%)
28 days761 (43%)723 (49%)631 (56%)285 (58%)120 (63%)
Cumulative case fatality rate at 1 year (% of patients within age group)
365 days894 (50%)881 (60%)774 (69%)341 (70%)134 (71%)
  • SAH, subarachnoid haemorrhage.

  • *Includes patients dying before they reached a hospital and patients dying in the hospital on the day of admission.