Table 2: ANOVA of SAGITTAL measurements (mm)

according to Nurick scale.

Nurick scale

N

Mean ± SD

F

p

Grade

 

 

22.263

0.000*

0. No evidence of disease

—

—

 

 

I. Without difficulty to walk

5

11.83 ± 0.9

 

 

II. Light difficulty to walk

11

9.06 ± 0.4

 

 

III. Difficulty to walk

8

7.25 ± 0.3

 

 

IV. Needs help to walk

9

5.77 ± 0.2

 

 

V. Dependent of chair or in bed

2

5.47 ± 0.5

 

 

Total

35

7.99 ± 0.4

 

 

SD = standard deviation

* Very highly statistically significant (p < 0.001).