Javeed et al reported a model for predicting upper limb functional outcome after traumatic cervical spinal cord injury. This can help to identify a patient who may require greater rehabilitation. The authors are from Washington University, Johns Hopkins University, Stanford University, and the University of Michigan.
Patient selection: status post traumatic spinal cord injury, age >= 15 years, with tetraplegia
Outcome: composite dependency in eating, bladder management, transfers, and locomotion at 1 year after injury (dependency >= 4 on a scale form 1 to 7 for >= 3 domains)
Parameters at 1 month after injury:
(1) age in years
(2) sex
(3) C5 light touch
(4) C8 light touch
(5) C5 motor score
(6) C6 motor score
Parameter
Finding
Points
age in years
< 60 years
0
>= 60 years
4
sex
male
0
female
2
C5 light touch
0 (absent)
4
1 (impaired)
2
2 (normal)
0
C8 light touch
0
10
1
5
2
0
C5 motor score
0
10
1
8
2
6
3
4
4
2
5
0
C6 motor score
0
15
1
12
2
9
3
6
4
3
5
0
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 45
value of X =
= (0.1741 * (score)) - 5.554
probability of functional dependency =
= 1 / (1 + EXP((-1) * X))
Performance:
• The area under the ROC cuve was 0.90.
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