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Table 6 Simple and multiple linear regression analysis to determine factors associated with change in lean mass

From: Assessing the adequacy of essential nutrient intake in obese dogs undergoing energy restriction for weight loss: a cohort study

Variable R R2 Probability
Simple regression    
 Agea −0.27 0.07 0.170
 Sex 0.09 0.01 0.658
 Neuter status −0.14 0.02 0.471
 Duration of weight loss 0.057 0.00 0.781
 Percentage weight loss −0.55 0.30 0.003
 Mean EI during weight lossb 0.28 0.08 0.152
 Mean rate of weight lossc −0.33 0.11 0.092
 Starting percentage body fat −0.28 0.08 0.152
 Change in fat massd 0.11 0.01 0.605
Mean daily intake < RDAe    
 Methionine & Cysteine −0.32 0.10 0.107
 Tryptophan −0.21 0.05 0.282
 Choline −0.13 0.02 0.514
Minimum daily intake < RDAf    
 Methionine & Cysteine −0.21 0.05 0.282
 Tryptophan 0.05 0.00 0.790
 Choline −0.31 0.10 0.111
Final multiple regression model    
 Percentage weight loss −0.55 0.30 0.003
  1. All data are expressed as median (range). EI: energy intake; RDA: recommended daily allowance
  2. aAge at the start of the weight loss programme
  3. bMean energy intake expressed as metabolisable energy (in kJ [Kcal]) per kg of metabolic body weight (BW0.75) per day
  4. cMean rate of weight loss expressed as percentage of starting body weight per week
  5. dPercentage change in fat mass between the start and end of the weight loss period
  6. eDummy variable created whereby 1 = the mean daily intake of each nutrient less than the NRC 2006 RA, and 0 when it was greater [15]
  7. fDummy variable created whereby 1 was assigned when the minimum daily intake of the nutrient less than the NRC 2006 RA, and 0 was assigned when it was greater [15]