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Other methods for determining severity of brain injury

Severity of brain injury Glasgow score Duration of coma Duration of post- traumatic amnesia

Mild

13 -15

<15 minutes

<6 hours

Moderate

8 -12

15 minutes – 6 hours

6 - 24 hours

Severe

<7

6 hours – 2 days

24 hours – 1 week

 

Severity of disability Duration of coma Duration of post-traumatic amnesia

Mild

<20 minutes

<I hour

Moderate to severe

>20 minutes

>1 hour

Note: coma defined as Glasgow coma score of 9 or less.