Table 5. Percentage of concussed (All), asymptomatic concussed (Sx-), and non-injured controls with 1 or more (1+) and 2 or more (2+) significant declines according to reliable change index (RCI) criteria.
24 hr | Day 8 | Day 15 | Day 45 | |||||||||
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Concussed | Control | Concussed | Control | Concussed | Control | Concussed | Control | |||||
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All | Sx- | (false +) | All | Sx- | (false +) | All | Sx- | (false +) | All | Sx- | (false +) | |
ANAM | ||||||||||||
1+ decline | 47.6 | 42.9 | 25.0 | 31.0 | 28.6 | 30.3 | 35.4 | 30.8 | 27.9 | 25.7 | 26.1 | 25.3 |
2+ decline | 31.0 | 0.0 | 6.3 | 10.7 | 7.1 | 14.7 | 7.6 | 6.2 | 11.5 | 11.4 | 11.6 | 8.0 |
Axon | ||||||||||||
1+ decline | 60.3 | 50.0 | 22.0 | 38.9 | 32.4 | 26.7 | 26.5 | 23.5 | 22.9 | 26.3 | 28.6 | 20.8 |
2+ decline | 34.2 | 0.0 | 4.4 | 12.5 | 8.1 | 7.0 | 7.4 | 7.8 | 7.2 | 14.0 | 14.3 | 5.6 |
ImPACT | ||||||||||||
1+ decline | 67.8 | 53.8 | 29.6 | 48.8 | 39.3 | 42.7 | 47.6 | 46.2 | 40.8 | 39.7 | 39.0 | 40.0 |
2+ decline | 34.5 | 15.4 | 4.0 | 8.3 | 4.9 | 6.5 | 10.7 | 9.0 | 10.8 | 6.4 | 6.5 | 4.8 |
Note. Symptom-free (Sx-) ns at 24 hr were small (7 for ANAM, 8 for Axon, and 13 for ImPACT). Symptomatic ns were small at day 45 (2 for ANAM; 1 for Axon/ImPACT). The number of neurocognitive RCIs available for each CNT was 7 for ANAM, 5 for Axon, and 4 for ImPACT. ImPACT uses 80% confidence intervals around RCIs, whereas ANAM and Axon use 90% CIs.