Cognitive Impairment after Severe Traumatic Brain Injury, Clinical Course and Impact on Outcome: A Swedish-Icelandic Study

Table 4

BNIS subscales scores, BNIS total score, and -score conversion at 3 weeks, 3 months, and 1 year.

(a)

BNIS score 3 weeks ()
Data not available ()	Mean (SD)	Median	Range
Not assessable ()
Speech/language	12.4 (2.6)	14.0	5–15
Orientation	2.3 (0.8)	2.5	1–3
Attention/concentration	1.6 (1.1)	2.0	0–3
Visuospatial and visual problem solving	5.1 (1.9)	5.0	1–8
Memory	3.4 (2.3)	3.0	0–7
Affect	3.0 (1.2)	3.0	0–4
Awareness	0.4 (0.5)	0.0	0-1
Total BNIS (raw) score	37.4 (8.3)	38.5	18–50
Total -score conversion	16.6 (19.6)	8.0	0.9–63

(b)

BNIS score 3 months ()				3 weeks versus
Data not available )	Mean (SD)	Median	Range	3 months
Not assessable ()				value
Speech/language	13.4 (2.0)	14.0	7–15	0.002
Orientation	2.6 (0.7)	3.0	1–3	0.032
Attention/concentration	2.1 (0.7)	2.0	1–3	0.054
Visuospatial and visual problem solving	5.5 (1.9)	6.0	1–8	0.013
Memory	4.2 (2.3)	4.0	0–7	0.001
Affect	3.3 (0.9)	4.0	0–4	0.051
Awareness	0.5 (0.5)	0.0	0-1	0.860
Total BNIS (raw) score	40.4 (7.0)	41.0	23–50	<0.001
Total -score conversion	25.1 (22.5)	23.0	0.9–63	<0.001

(c)

BNIS 1 year ()				3 months versus
Data not available ()	Mean (SD)	Median	Range	1 year
Not assessable ()				value
Speech/language	13.1 (2.7)	14.0	2–15	0.322
Orientation	2.7 (0.6)	3.0	1–3	0.072
Attention/concentration	2.0 (1.0)	2.0	1–3	0.682
Visuospatial and visual problem solving	5.5 (0.9)	6.0	1–8	0.136
Memory	4.3 (2.3)	4.0	0–7	0.082
Affect	3.3 (1.0)	4.0	0–4	0.870
Awareness	0.5 (0.5)	0.5	0-1	0.712
Total BNIS (raw) score	40.3 (7.8)	42.0	16–50	0.004
Total -score conversion	25.1 (22.4)	23.0	0.9–63	0.086