Included: all patients who were admitted to hospital are included apart from patients whose first ward they were admitted to was Intensive Therapy Unit (ITU) / Coronary Care Unit (CCU) / High Dependency Unit (HDU) or patients who received an intra-arterial intervention for acute stroke.
| Excluded: patients who were first admitted to an ITU/CCU/HDU ward or patients who received an intra-arterial intervention for acute stroke are excluded from this indicator |
Numerator = the number of patients who were admitted to a stroke unit within and including 4 hours of clock start.
Denominator = all the patients in the cohort (excluding the patients who were admitted to ITU/CCU/HDU or patients who received an intra-arterial intervention).
To calculate whether a patient is included in the numerator:
- Firstly, identify the number of patients where “Stroke Unit” is the first ward the patient was admitted to at the first hospital (Q 1.14) and who did not receive an intra-arterial intervention (Q2.11 is “No”).
- Then identify the number of these patients:
- newly arriving at hospital where the difference between the date and time of arrival (Q1.13) and the date and time the patient first arrived on the stroke unit (Q1.15) is less than or equal to 240 minutes
- already in hospital where the difference between the date and time of symptom onset (Q1.11) and the date and time the patient first arrived on the stroke unit (Q1.15) is less than or equal to 240 minutes
Cohort percentage:
| For team-centred | For patient-centred |
| All patients in the team-centred 72h cohort except those who went to ITU/CCU/HDU or received an intra-arterial intervention | All patients in the patient-centred 72h cohort except those who went to ITU/CCU/HDU or received an intra-arterial intervention |
Example
Patient Q arrived (clock start) at hospital at 18:57 on Wednesday. They were directly admitted to the stroke unit at 20:57 that same day. Patient Q has achieved the indicator. They were directly admitted to a stroke unit in 120 minutes.
Patient R arrived (clock start) at hospital at 14:15 on Sunday. They were directly admitted to the stroke unit at 20:16 that same day. Patient R has not achieved this indicator. They were admitted to the stroke unit in 361 minutes which is more than 240 minutes.
Patient S arrived (clock start) at hospital at 20:08 on Saturday. They were not directly admitted to a stroke unit, they were first admitted to a general ward (MAU/AAU/CDU) before being admitted to a stroke unit at 21:08. Patient S has not achieved this indicator as they were not directly admitted to a stroke unit (or ITU/CCU/HDU).
Patient T arrived (clock start) at hospital at 03:45 on Tuesday. They were directly admitted to HDU. Patient T is excluded because they were first admitted to HDU.
Therefore the cohort percentage is 0.33 or 33% or 