Table 1 Distribution of the American Spinal Injury Association Impairment Scale (AIS) and the Neurological Level of Injury (NLI) for the early (11.8 ± 7.6 days after injury) and the late (357.1 ± 53.7 days after injury) time window for all 665 included individuals.

From: The revised zone of partial preservation (ZPP) in the 2019 International Standards for Neurological Classification of Spinal Cord Injury: ZPP applicability in incomplete injuries

Acute assessment

Chronic assessment

AIS

AIS %

NLI

NLI %

AIS

AIS %

NLI

NLI %

A

46.0

C1–C4

11.6

A

34.9

C1–C4

6.9

  

C5–C8

7.2

  

C5–C8

4.4

  

T1–S5

27.2

  

T1–S5

23.6

B

11.3

C1–C4

3.2

B

8.4

C1–C4

1.4

  

C5–C8

3.0

  

C5–C8

3.5

  

T1–S5

5.1

  

T1–S5

3.6

C

17.5

C1–C4

7.1

C

8.9

C1–C4

1.5

  

C5–C8

3.3

  

C5–C8

2.3

  

T1–S5

7.1

  

T1–S5

5.1

D

25.3

all levels

D

46.3

all levels

E

0.0

all levels

E

1.5

all levels