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Table 5 Sub-tests predicting concussion, logistic regression model odds ratios

From: The performance of the World Rugby Head Injury Assessment Screening Tool: a diagnostic accuracy study

Sub-testOdds RatioStandard errorzp value95% LCL95% UCL
Baseline thresholds
 Maddocks questions1.90.81.60.10.94.2
 Immediate memorya
 Digits backwards1.90.43.5< 0.011.32.7
 Tandem gaita
 Symptoms6.81.310.1< 0.014.79.9
 Delayed recall1.80.33.4< 0.011.32.5
 Clinical signs6.91.68.6< 0.014.510.8
Normative thresholds
 Maddocks questionsa
 Immediate memorya
 Digits backwards1.90.33.7< 0.011.42.7
 Tandem gaita
 Symptoms6.81.211.2< 0.014.99.5
 Delayed recall3.70.95.3< 0.012.36.1
 Clinical signs6.61.58.6< 0.014.310.1
 
  1. LCL lower confidene limit, UCL upper confidence limit
  2. aExcluded from final prediction model