This scale is widely used for measuring cerebral outcomes from stroke and other neurological conditions. Scores range from 0-6, running from perfect health without symptoms to death. It was originally devised in 1957 by Dr. John Rankin of Glasgow, Scotland.

• 0 – No symptoms.
• 1 – No significant disability. Able to carry out all usual activities, despite some symptoms.
• 2 – Slight disability. Able to look after own affairs without assistance, but unable to carry out all previous activities.
• 3 – Moderate disability. Requires some help, but able to walk unassisted.
• 4 – Moderately severe disability. Unable to attend to own bodily needs without assistance, and unable to walk unassisted.
• 5 – Severe disability. Requires constant nursing care and attention, bedridden, incontinent.
• 6 – Dead.