Table 3 General linear model testing the relationship between UA quartiles and SMI, gait speed, handgrip strength after adjusting for relevant confounders

In female

SMI (kg/m²)

 Q1^#(Ref)

-

-

-

-

-

 Q2^#

0.201

0.0418

 < 0.001

0.119

0.283

 Q3^#

0.248

0.0415

 < 0.001

0.167

0.33

 Q4^#

0.27

0.0417

 < 0.001

0.189

0.352

Gait speed (GS) (m/s)

 Q1^#(Ref)

-

-

-

-

-

 Q2^#

0.004

0.0156

0.817

-0.027

0.034

 Q3^#

0.01

0.0155

0.512

-0.02

0.041

 Q4^#

-0.039

0.0156

0.012

-0.07

-0.008

Handgrip strength (HGS) (kg)

 Q1^#(Ref)

-

-

-

-

-

 Q2^#

0.737

0.3212

0.022

0.107

1.366

 Q3^#

1.142

0.3194

 < 0.001

0.516

1.768

 Q4^#

0.694

0.3207

0.03

0.066

1.323

In male

SMI (kg/m²)

 Q1*(Ref)

-

-

-

-

-

 Q2*

0.088

0.0599

0.144

-0.03

0.207

 Q3*

0.237

0.0598

 < 0.001

0.12

0.354

 Q4*

0.359

0.0605

 < 0.001

0.241

0.476

Gait speed (GS) (m/s)

 Q1*(Ref)

-

-

-

-

-

 Q2*

0.01

0.0205

0.642

-0.031

0.05

 Q3*

0.005

0.0203

0.821

-0.035

0.044

 Q4*

0.006

0.0203

0.757

-0.034

0.046

Handgrip strength (HGS) (kg)

 Q1*(Ref)

-

-

-

-

-

 Q2*

0.233

0.7151

0.745

-1.169

1.635

 Q3*

0.482

0.7068

0.495

-0.903

1.867

 Q4*

1.406

0.7083

0.047

0.018

2.794