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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