| Biomarker ROCs | Symptom intensity rating (SIR) (severity measure) rho for alpha 0.05 |
| Low auditory speed of processing (% of age) (n 121) | 0.634 |
| Low visual span (n 126) | 0.632 |
| Low visual speed of processing (% of age) (n 121) | 0.616 |
| High noradrenaline (n 133) | 0.575 |
| High adrenaline (n 133) | 0.521 |
| Low competing words score (% of pass score) (n 124) | 0.498 |
| Low reverse digit span (n 128) | 0.446 |
| High distance vision score on right (n 128) | 0.368 |
| Long threshold per cent base length/duration (n 122) | 0.365 |
| High HPL/creatinine (n 133) | 0.342 |
| High dopamine (n 133) | 0.304 |
| High threshold gradient middle ear pressure (n 124) | 0.282 |
| Low red cell folate (n 133) | 0.278 |
| Low vitamin D (n 132) | 0.254 |
| High threshold stapes amplitude projected (n 123) | 0.242 |
| Low threshold time to offset/base length (n 122) | 0.239 |
| High threshold Ear Canal Volume (ECV) (n 123) | 0.226 |
| High serum B12 (n 134) | 0.194 |
| Low activated vitamin B6 (n 126) | 0.187 |