Table 5 Multiple linear regression analysis to identify covariates associated with SVA.

From: Hand grip strength as a surrogate marker for postoperative changes in spinopelvic alignment in patients with lumbar spinal stenosis

Independent variable

Dependent variable: postoperative SVA

β

SE

P

Age

0.065

0.605

0.575

Sex

0.014

9.855

0.901

BMI

0.111

1.386

0.297

Presence of osteoporosis

0.038

11.228

0.722

History of falling

0.085

1.892

0.418

Preoperative SMT

0.269

1.245

0.133

Preoperative TUGT

-0.169

1.056

0.349

Preoperative STS

-0.014

0.737

0.902

HGS

-0.360

0.690

0.006*

  1. The enter method was applied to this model with HGS as an independent variable and age, BMI, presence of osteoporosis, history of falling, and preoperative SMT/TUGT/STS as dependent variables simultaneously.
  2. SVA sagittal vertical axis, β regression coefficient, SE standard error, BMI body mass index, SMT 6-min walk test, TUGT timed up and go test, STS sit to stand test, HGS hand grip strength.
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