Table 3.
Correlations Between Independent Variables and Cognitive Outcomes (N = 254)
| PTSD Severity |
Deployment TBI |
Blast Pressure |
||||
|---|---|---|---|---|---|---|
| Cognitive Measure | r | p | r | p | r | p |
| WAIS-IV | ||||||
| Perceptual Reasoning Index (PRI) | −.01 | .936 | −.06 | .321 | −.06 | .321 |
| Verbal Comprehension Index (VCI) | −.03 | .596 | −.13 | .036 | .02 | .765 |
| Working Memory Index (WMI) | −.09 | .161 | −.15 | .016 | −.08 | .183 |
| Processing Speed Index (PSI) | −.11 | .096 | −.13 | .044 | −.06 | .385 |
| Trail Making Test A (TMT-A) | −.16 | .014 | −.24 | < .001 | −.10 | .129 |
| Trail Making Test B (TMT-B) | −.09 | .145 | −.18 | .004 | −.13 | .041 |
Note. All cognitive measures are represented by demographically corrected T scores. PTSD Severity = CAPS-5 severity score (0–78). TBI = deployment TBI (0 = absent, 1 = present). Blast Pressure = maximum pressure experienced (0–5). r = Pearson’s correlation.