Skip to main content

Table 4 Results of multiple linear regression analysis for the impact of sex, age, BMI, and WC on paraspinal muscle parameters

From: BMI-stratified cutoff values for spinal sarcopenia in Chinese adults based on CT measures: a multicentre study

Models

 

Unstandardized Coefficients

Standardized Coefficients

t values

p values

95.0% confidence interval

B

Std. Error

Beta

Lower

Upper

L3

PSMI

Constant

17.367

0.415

 

41.823

0.000

16.553

18.181

Sex

-2.403

0.086

-0.391

-28.099

0.000

-2.571

-2.236

Age

-0.046

0.003

-0.198

-14.938

0.000

-0.053

-0.04

BMI

0.371

0.018

0.442

20.932

0.000

0.336

0.406

WC

-0.049

0.006

-0.169

-7.744

0.000

-0.062

-0.037

L3

PMI

Constant

8.522

0.225

 

37.931

0.000

8.082

8.963

Sex

-2.169

0.046

-0.599

-46.871

0.000

-2.26

-2.078

Age

-0.013

0.002

-0.090

-7.435

0.000

-0.016

-0.009

BMI

0.184

0.01

0.371

19.149

0.000

0.165

0.202

WC

-0.033

0.003

-0.192

-9.581

0.000

-0.04

-0.026

L3

PSMD

Constant

80.629

1.035

 

77.891

0.000

78.599

82.658

Sex

-6.532

0.213

-0.405

-30.637

0.000

-6.95

-6.114

Age

-0.252

0.008

-0.409

-32.493

0.000

-0.267

-0.237

BMI

-0.011

0.044

-0.005

-0.244

0.807

-0.097

0.076

WC

-0.18

0.016

-0.235

-11.311

0.000

-0.211

-0.149

L3

PMD

Constant

66.533

0.772

 

86.156

0.000

65.019

68.047

Sex

-3.619

0.159

-0.317

-22.753

0.000

-3.931

-3.307

Age

-0.187

0.006

-0.429

-32.365

0.000

-0.199

-0.176

BMI

0.078

0.033

0.050

2.353

0.019

0.013

0.142

WC

-0.093

0.012

-0.170

-7.796

0.000

-0.116

-0.069

  1. Note: The L3 level PSMI, PMI, PSMD, and PMD were analyzed using multivariate regression models, adjusting for sex, age, BMI, and WC. BMI, body mass index; WC, waist circumference; PSMI, paraspinal muscle index; PMI, psoas muscle index; PSMD, paraspinal muscle density; PMD, psoas muscle density