Table 1

The modified Rankin Scale

0No symptoms at all
1No significant disability despite symptoms: able to carry out all usual duties and activities
2Slight disability: unable to carry out all previous activities but able to look after own affairs without assistance
3Moderate disability: requiring some help, but able to walk without assistance
4Moderately severe disability: unable to walk without assistance and unable to attend to own bodily needs without assistance
5Severe disability: bedridden, incontinent and requiring constant nursing care and attention