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Table 7 Possible predictor variables associated with non-assessable guidline compliance

From: Evaluation of the Scandinavian guidelines for head injuries based on a consecutive series with computed tomography from a Norwegian university hospital

Variables in the regression model Unadjusted Odds ratio 95% CI p-value Adjusted Odds ratio 95% CI p-value
Age < 4 years 3.1 1.4 to 7.1 0.006 25.6 9.1 to 72.0 <0.001
Age ≥ 65 years 2.7 2.0 to 3.6 <0.001 1.8 0.8 to 4.4 0.180
Gender : female 1.7 1.3 to 2.2 <0.001 1.2 0.6 to 2.1 0.654
Suspicion of alcohol/drug influence 0.4 0.3 to 0.8 0.003 0.8 0.3 to 1.9 0.602
Severe headache, nausea or vomiting 1.9 1.4 to 2.5 <0.001 2.1 1.1 to 4.0 0.034
Possible medical cause of injury* 41.3 24.2 to 70.5 <0.001 234.6 108.5 to 507.3 <0.001
Use of anti-platelet drugs, e.g. acetylsalicylic acid 3.4 2.2 to 5.0 <0.0|01 2.5 1.0 to 6.5 0.052
Non-traumatic CT findings 2.3 1.7 to 3.1 <0.001 3.3 1.5 to 7.3 0.003
  1. *Such as syncope, epilepsy, cardiac arrest etc.