Research Article
Cognitive Impairment after Severe Traumatic Brain Injury, Clinical Course and Impact on Outcome: A Swedish-Icelandic Study
Table 5
BNIS total score and
-score conversion, cut-off level of cognitive function (
).
| | Total score | Points | 3 weeks | 3 months | 1 year | | (%) | (%) | (%) |
| | Low probability of cognitive dysfunction | ≥47 | 6 (16) | 18 (24) | 20 (26) | |
Recommendation of further investigation of cognitive function | <47 | 36 (84) | 57 (76) | 58 (74) | | Total | | 42 (100) | 75 (100) | 78 (100) |
| | Total -score conversion | | (%) | (%) | (%) |
| | Very low probability of cognitive dysfunction | >50 | 4 (7) | 14 (19) | 14 (18) | | Low probability of cognitive dysfunction | 40–50 | 3 (7) | 9 (12) | 11 (14) | | Increased likelihood of cognitive dysfunction | 30–39 | 3 (7) | 10 (14) | 10 (13) | | High probability of cognitive dysfunction | <30 | 32 (76) | 41 (55) | 42 (54) | | Missing | | | 1 (1) | 1 (1) | | Total | | 42 (100) | 75 (100) | 78 (100) | | Missing, (% of all included) | | | | | | Data not available | | 10 (9) | 1 (1) | 3 (3) | | Not assessable | | 59 (52) | 29 (25) | 19 (16) | | Withdrew | | 2 (2) | 4 (4) | 7 (6) | | Hospital death | | 1 (1) | 5 (4) | 7 (6) |
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