Table 11.12Imaging and admission volumes and costs England and Wales associated with different clinical decision rules (updated 2007)

Number per year (000)Cost per year (£m)
Current (pre-2003)New (post-2003)ChangeCurrent (pre-2003)New (post-2003)Change
Skull X-ray3780−3787.20.0−7.2
Head CT162051891.215.814.6
24-hr Obs9633−6321.67.5−14.1
Cervical spine

Note that the 2003 recommendations should lead to reduced spine imaging generally (including CT), as given here. However the 2007 update should lead to increased CT scanning compared with the 2003 recommendations (figures not given).

From: 11, Economic evaluation

Cover of Head Injury
Head Injury: Triage, Assessment, Investigation and Early Management of Head Injury in Infants, Children and Adults.
NICE Clinical Guidelines, No. 56.
National Collaborating Centre for Acute Care (UK).
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