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Table 4 Pearson correlation between age and morphometric fat variables measured by DXA and abdominal CT relative to the ultrasound measurements of subcutaneous and visceral adipose thickness in 22 mixed-breed dogs

From: Compartmental fat distribution in the abdomen of dogs relative to overall body fat composition

Trait

VAT (mm)

SAT (mm)

TAT (mm)

VAT/SAT

Age (yrs)

0.456*

−0.003

0.393

0.535*

Weight (kg)

0.711**

0.568**

0.732**

0.293

BCS (1–9)

0.305

0.200

0.305

0.307

DXA total body fat mass (kg)

0.804**

0.660**

0.831**

0.334

DXA total body fat percentage (%)

0.034

−0.021

0.025

0.133

CT total abdominal fat mass (kg)a

0.783**

0.638**

0.809**

0.326

CT total abdominal fat percentage (%)b

0.396

0.323

0.409

0.293

CT relative abdominal fat percentage (%)c

0.586**

0.622**

0.635**

0.203

CT visceral fat mass (kg)a

0.832**

0.594**

0.842**

0.412

CT visceral fat percentage (%)b

0.485*

0.163

0.452*

0.515*

CT relative visceral fat percentage %c

0.739**

0.348

0.711**

0.598**

CT SQ fat mass (kg)a

0.734**

0.656**

0.770**

0.261

CT SQ fat percentage (%)b

0.278

0.417

0.327

0.079

CT relative SQ fat percentage %c

0.282

0.611**

0.371

−0.146

CT V/SQ

0.396

−0.195

0.301

0.644**

  1. BCS body condition score, CT computed tomography, DXA Dual-energy X-ray Absorptiometry, SAT subcutaneous adipose thickness, SQ abdominal subcutaneous, TAT total adipose thickness, V/SQ visceral-to-subcutaneous fat ratio, VAT visceral adipose thickness
  2. Correlation coefficient values connected with * p < 0.05; ** p < 0.01
  3. a fat mass calculated from fat volume assuming fat density of 0.923 kg/L
  4. b fat percentage calculated by regional fat mass relative to total body mass
  5. c fat percentage calculated by regional fat mass relative to total body fat mass