Table 1.C.
Predictors of PTS Recurrence. We report predictors of PTS recurrence (i.e., a second PTS). Although the likelihood of PTS recurrence varies by follow-up time, the effect is minimal and explored in Supplementary Table 2. Time zero is the time of the first late PTS. For p-values, we used 2-sided t-tests for normally distributed continuous variables and a chi-squared or Fisher’s exact test for categorical variables.
| Description | No PTS Recurrence (n=26) |
PTS Recurrence (n=72) |
p-value | |||
|---|---|---|---|---|---|---|
| Demographic | Age | 36 +/− 16 | 30 +/− 12 | 0.07 | ||
| Race | American Indian | 1/26 (4%) | 0/72 (0%) | 0.39 | ||
| Asian/Indian | 0/26 (0%) | 0/72 (0%) | ||||
| Black | 1/26 (4%) | 2/72 (3%) | ||||
| White | 24/26 (92%) | 70/72 (97%) | ||||
| Other | 0/26 (0%) | 0/72 (0%) | ||||
| Sex (male) | 18/26 (69%) | 62/72 (86%) | 0.08 | |||
| Clinical | GCS | 3 | 5/26 (19%) | 8/72 (11%) | 0.35 | |
| 4 | 2/26 (8%) | 5/72 (7%) | ||||
| 5 | 3/26 (11%) | 3/72 (4%) | ||||
| 6 | 7/26 (27%) | 16/72 (22%) | ||||
| 7 | 9/26 (35%) | 35/72 (49%) | ||||
| 8 | 0/26 (0%) | 5/72 (7%) | ||||
| Hypoxia | 5/25 (20%) | 7/67 (10%) | 0.30 | |||
| Hypotension | 6/26 (23%) | 11/67 (16%) | 0.55 | |||
| Major extracranial injury | 3/26 (12%) | 6/67 (9%) | 0.71 | |||
| EVD hemorrhage | 3/25 (12%) | 8/71 (11%) | 0.99 | |||
| CNS Infection | 5/26 (19%) | 14/72 (19%) | 0.98 | |||
| DHC | 11/26 (42%) | 44/72 (61%) | 0.10 | |||
| Craniotomy | 15/26 (58%) | 50/72 (69%) | 0.28 | |||
| Shunt | 10/26 (38%) | 20/72 (28%) | 0.31 | |||
| Lobectomy | 3/26 (12%) | 14/72 (19%) | 0.55 | |||
| LOS | 29 +/− 13 | 27 +/− 13 | 0.59 | |||
| ICU LOS | 23 +/− 9 | 21 +/− 10 | 0.33 | |||
| Laboratory | Glucose | 136 +/− 40 | 165 +/− 65 | 0.01 | ||
| Hemoglobin | 13.0 +/− 1.8 | 13.5 +/− 1.8 | 0.27 | |||
| INR | 1.2 +/− 0.3 | 1.2 +/− 0.2 | 0.60 | |||
| Intoxicated | 13/20 (65%) | 25/56 (45%) | 0.12 | |||
| Radiographic | SDH | 14/26 (54%) | 36/70 (51%) | 0.83 | ||
| EDH | 4/25 (16%) | 9/68 (13%) | 0.74 | |||
| tSAH | 19/25 (76%) | 53/68 (78%) | 0.84 | |||
| IVH | 5/25 (20%) | 15/70 (21%) | 0.88 | |||
| Contusion | 16/26 (62%) | 45/70 (64%) | 0.80 | |||
| Depressed Skull Fracture | 7/26 (27%) | 16/70 (23%) | 0.68 | |||
| Petechial hemorrhage | 14/23 (61%) | 44/64 (69%) | 0.49 | |||
| Obliteration of the 3rd ventricle | 7/23 (30%) | 20/64 (31%) | 0.94 | |||
| Midline Shift | 9/26 (35%) | 31/70 (44%) | 0.45 | |||
| MLS > 5mm | 6/26 (23%) | 22/70 (31%) | 0.42 | |||
| Marshall CT score | 1 | 1/25 (4%) | 0/68 (0%) | 0.36 | ||
| 2 | 12/25 (48%) | 33/68 (49%) | ||||
| 3 | 1/25 (4%) | 9/68 (13% | ||||
| 4 | 3/25 (12%) | 5/68 (7%) | ||||
| 5 | 8/25 (32%) | 21/68 (31%) | ||||
| 6 | 0/25 (0%) | 0/68 (0%) | ||||