Table 8.
Group by condition means and SEM for each of the four FIT-dependent measures.
| 21% O2 baseline | 15.5% O2 | 14% O2 | 13% O2 | 21% O2 post stress | |
|---|---|---|---|---|---|
| Pupil diameter | Group p = 0.066, Percent O2 p < 0.001, Group × Percent O2 p = 0.617** | ||||
| mTBI | 5.42 ± 0.46 | 5.29 ± 0.16 | 5.17 ± 0.16 | 5.08 ± 0.17 | 5.19 ± 0.15 |
| HC | 5.87 ± 0.16 | 5.68 ± 0.16 | 5.59 ± 0.16 | 5.43 ± 0.17 | 5.66 ± 0.16 |
| Pupil constriction amplitude | Group p = 0.618, Percent O2 p < 0.001, Group × Percent O2 p = 0.391** | ||||
| mTBI | 1.13 ± 0.04 | 1.12 ± 0.04 | 1.10 ± 0.04 | 1.06 ± 0.04 | 1.11 ± 0.04 |
| HC | 1.19 ± 0.04 | 1.14 ± 0.04 | 1.10 ± 0.04 | 1.06 ± 0.04 | 1.16 ± 0.04 |
| Pupil constriction latency | Group p = 0.252, Percent O2 p = 0.276, Group × Percent O2 p = 0.680** | ||||
| mTBI (ms) | 299.97 ± 4.04 | 298.28 ± 3.82 | 301.27 ± 3.87 | 299.85 ± 3.91 | 303.02 ± 4.10 |
| HC (ms) | 294.22 ± 4.17 | 293.71 ± 3.94 | 295.24 ± 4.00 | 293.57 ± 4.04 | 294.44 ± 4.24 |
| Saccadic velocity | Group p = 0.685, Percent O2 p < 0.001, Group × Percent O2 p = 0.091** | ||||
| mTBI (ms) | 74.25 ± 1.21 | 72.47 ± 1.29 | 72.96 ± 1.18 | 72.06 ± 1.33 | 71.67 ± 1.34 |
| HC (ms) | 72.32 ± 1.25 | 73.64 ± 1.33 | 71.99 ± 1.22 | 71.01 ± 1.37 | 71.02 ± 1.38 |
**Greenhouse–Geisser correction was used in the univariate ANOVA follow-ups to account for significant Mauchly’s test of sphericity with Epsilon values < 0.75. Main effects were not considered important because mTBI and HC were matched pairs and the Baseline and Post Stress conditions were expected to be equivalent. None of the interactions emerged significant.