Table 2

Baseline demographics*

VariableControl food† (n=14)Test food‡ (n=14)P value
Age, years8.99±0.719.55±0.620.56
SexMales=7, females=7Males=7, females=71.00
Body weight, g5334±2645803±2900.24
IRIS stage CKDStage 1=12; stage 2=2Stage 1=11; stage 2=30.64
Body condition score§3.36±0.633.71±0.910.24
Lean body mass, g3885±1583825±1670.80
Fat body mass, g1351±6821761±8770.18
Serum creatinine, mg/dl1.40±0.091.35±0.060.64
Serum SDMA, µg/dL15.5±0.515.4±0.50.84
USG1.043±0.0031.043±0.0030.99
UPC ratio0.21±0.060.21±0.030.86
  • *Values are means±SEM.

  • †Control food was Feline Renal Support A dry cat food (Royal Canin Veterinary Diet, St. Charles, Missouri, USA).

  • ‡Test food was Hill’s Prescription Diet k/d Feline with chicken, dry cat food (Hill’s Pet Nutrition, Topeka, Kansas, USA).

  • §Body condition score scale ranged from 1 to 5.

  • CKD, chronic kidney disease; IRIS, International Renal Interest Society; SDMA, symmetric dimethylarginine; UPC, urine protein-to-creatinine ratio; USG, urine-specific gravity.