Table 8.
Descriptive Statistics for Cognitive Performance at 6 Months Post-Injury by Injury Group
| |
mTBI (GCS 13–15) CT- |
mTBI (GCS 13–15) CT+ |
Moderate-Severe TBI (GCS 3–12) |
OTC |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | M | SD | N | M | SD | N | M | SD | N | M | SD | |
| BTACT | ||||||||||||
| General factor | 681 | -0.29 | 0.86 | 353 | -0.46 | 0.94 | 167 | -0.68 | 0.86 | 170 | -0.07 | 0.86 |
| Episodic Memory factor | 681 | -0.13 | 0.91 | 353 | -0.22 | 0.95 | 167 | -0.49 | 0.89 | 170 | -0.04 | 0.93 |
| RAVLT Trial 1 Recall | 681 | 6.35 | 2.27 | 351 | 6.16 | 2.35 | 167 | 5.60 | 2.34 | 170 | 6.52 | 2.24 |
| RAVLT Delayed Recall | 679 | 3.51 | 2.55 | 347 | 3.34 | 2.57 | 167 | 2.72 | 2.34 | 170 | 3.73 | 2.74 |
| Executive Functioning factor | 681 | -0.31 | 0.87 | 353 | -0.47 | 0.96 | 167 | -0.65 | 0.86 | 170 | -0.07 | 0.86 |
| Digit Span Backward | 681 | 4.96 | 1.53 | 353 | 4.87 | 1.64 | 167 | 4.77 | 1.45 | 170 | 5.14 | 1.63 |
| Category Fluency | 681 | 19.5 | 6.0 | 353 | 18.9 | 6.2 | 166 | 17.6 | 5.6 | 170 | 20.8 | 5.3 |
| Number Series | 679 | 2.54 | 1.72 | 345 | 2.46 | 1.77 | 167 | 2.28 | 1.65 | 170 | 2.84 | 1.69 |
| 30-SACT | 679 | 39.1 | 11.2 | 349 | 37.1 | 11.8 | 167 | 35.4 | 10.7 | 170 | 40.0 | 10.8 |
| Paper-and-Pencil | ||||||||||||
| TMT A Raw | 661 | 28.3 | 13.5 | 329 | 32.7 | 18.0 | 163 | 35.6 | 17.2 | 168 | 25.5 | 9.8 |
| TMT B Raw | 658 | 76.8 | 44.3 | 327 | 86.5 | 59.0 | 153 | 96.6 | 67.2 | 168 | 70.5 | 42.9 |
| WAIS PSI | 659 | 101.4 | 16.4 | 326 | 98.2 | 17.3 | 159 | 89.7 | 17.0 | 167 | 101.7 | 14.7 |
| RAVLT Trial 1-5 Sum | 670 | 46.2 | 11.1 | 334 | 43.2 | 11.5 | 161 | 39.2 | 10.6 | 169 | 47.2 | 12.0 |
| RAVLT Delay Recall | 670 | 9.08 | 3.53 | 334 | 8.29 | 3.60 | 161 | 6.87 | 3.63 | 168 | 9.48 | 3.70 |
| NIH Toolbox | ||||||||||||
| Fluid Cognition Composite | 424 | 109.9 | 13.2 | 175 | 107.3 | 14.0 | 82 | 104.6 | 13.1 | 108 | 108.3 | 12.8 |
| Dimen. Change Card Sort | 438 | 108.7 | 13.3 | 184 | 103.0 | 12.9 | 84 | 104.7 | 13.9 | 117 | 104.6 | 12.3 |
| Flanker | 439 | 105.9 | 12.1 | 189 | 104.0 | 13.2 | 89 | 99.8 | 12.1 | 117 | 102.9 | 11.0 |
| List Sorting | 440 | 108.9 | 12.0 | 184 | 107.1 | 13.8 | 86 | 106.8 | 12.4 | 117 | 111.4 | 13.2 |
| Pattern Comparison | 441 | 105.8 | 18.9 | 184 | 98.3 | 20.5 | 84 | 96.1 | 19.4 | 116 | 104.7 | 18.4 |
| Picture Sequence Memory | 427 | 104.1 | 15.3 | 177 | 101.8 | 15.1 | 82 | 98.8 | 15.5 | 109 | 103.2 | 15.6 |
| Picture Vocabulary | 440 | 115.7 | 11.5 | 188 | 116.7 | 12.7 | 89 | 114.9 | 11.4 | 118 | 119.3 | 12.7 |
30-SACT, 30 Seconds and Counting test of backward counting; BTACT, Brief Test of Adult Cognition by Telephone; CT-, computed tomography scan negative for acute intracranial findings; CT+, computed tomography scan positive for acute intracranial findings; GCS, admission Glasgow Coma Scale score; mTBI, mild TBI (GCS score 13–15); NIH Toolbox, National Institutes of Health Toolbox Cognition Battery; OTC, orthopedic trauma control; TBI, traumatic brain injury; TMT, Trail Making Test; WAIS-IV PSI, Wechsler Adult Intelligence Scale-Fourth Edition Processing Speed Index.