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Table 5 Multiple linear regression analysis of influencing factors and SVA

From: Correlation between multifidus muscle atrophy, spinopelvic parameters, and severity of deformity in patients with adult degenerative scoliosis: the parallelogram effect of LMA on the diagonal through the apical vertebra

Influencing factors

Variables

B value

Standard error

t value

P value

R2 value

Spinopelvic parameters

LL

0.342

0.088

3.904

< 0.001

0.129

SS

− 0.751

0.172

− 4.362

< 0.001

 

Constant

18.093

2.434

7.433

< 0.001

 

Concave or convex LMA at the upper or lower intervertebral level of the apical vertebra

Upper intervertebral level LMA

    

0.319

 Convex

− 8.123

1.000

7.615

< 0.001

–

Lower intervertebral level LMA

    

–

 Concave

− 4.198

1.184

− 3.545

0.001

–

Constant

5.941

2.974

1.997

0.048

–

  1. LL lumbar lordosis, SS sacral slope, SVA sagittal vertical axis, LMA lumbar multifidus atrophy