Table 4.
Comorbidity versus anterior hippocampal ratios in explosive blast mTBI group
| NAA/Cr | NAA/Ch | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| N | L5 | L6 | R5 | R6 | L5 | L6 | R5 | R6 | |
| PTSD | |||||||||
| Yes | 16 | 1.16 | 1.20 | 1.06 | 1.08 | 0.95 | 0.88 | 0.92 | 0.84 |
| No | 9 | 1.11 | 1.16 | 1.09 | 1.02 | 0.95 | 0.85 | 0.93 | 0.76 |
| Depression | |||||||||
| Yes | 15 | 1.15 | 1.22 | 1.07 | 1.08 | 0.97 | 0.89 | 0.94 | 0.87 |
| No | 10 | 1.13 | 1.14 | 1.07 | 1.02 | 0.93 | 0.84 | 0.90 | 0.74 |
| Anxiety | |||||||||
| Yes | 10 | 1.08 | 1.12 | 1.04 | 1.08 | 0.97 | 0.90 | 0.94 | 0.87 |
| No | 15 | 1.18 | 1.23 | 1.09 | 1.04 | 0.94 | 0.84 | 0.91 | 0.77 |
| Effort | |||||||||
| Yes | 11 | 1.11 | 1.17 | 1.08 | 1.04 | 0.95 | 0.87 | 0.95 | 0.82 |
| No | 11 | 1.17 | 1.15 | 1.09 | 1.10 | 0.96 | 0.80 | 0.92 | 0.83 |
There are no statistically significant differences in MRSI measures with or without any of the particular comorbidities. mTBI, mild traumatic brain injury; NAA/Cr, N-acetyl aspartate to choline; PTSD, posttraumatic stress disorder; MRSI, magnetic resonance spectroscopic imaging.