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
| 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** |
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
Correlation coefficient values connected with * p < 0.05; ** p < 0.01
a fat mass calculated from fat volume assuming fat density of 0.923 kg/L
b fat percentage calculated by regional fat mass relative to total body mass
c fat percentage calculated by regional fat mass relative to total body fat mass