Correlations between the number of episodes of LOC and the presence of PTSD, presence of an ND, MOCA scores, PCL-M scores or olfactory test results for combat veterans
| Correlation of episodes of mTBI with outcomes and correlation of PCL-M and olfaction tests scores with MOCA scores | mTBI associated with combat | |
| Correlation coefficient | p Value | |
| LOC vs ND (including olfaction) | 0.314 | <0.01 |
| LOC vs ND (excluding olfaction) | 0.254 | <0.01 |
| LOC vs PTSD | 0.405 | <0.01 |
| LOC vs MOCA score | −0.226 | <0.01 |
| LOC vs PCL-M score | 0.577 | <0.01 |
| LOC vs olfaction score | −0.665 | <0.01 |
| MOCA score vs PCL-M score | −0.620 (−0.765) | <0.001 for both |
| MOCA score vs olfaction score | 0.00497 (0.0926) | NS for both |
| PCL-M vs olfaction | −0.194 | NS |
Kendall's rank correlation analysis coefficients are shown in the table with Pearson's product–moment correlation coefficients shown in parentheses.
LOC, loss of consciousness; MOCA, Montreal Cognitive Assessment; mTBI, mild traumatic brain injury; ND, neurological deficit; PTSD, post-traumatic stress disorder.