Table 1: Independent effects of body composition and activity markers on variations in irisin plasma levels.

(95% CI) value

Model 1
 REE (Kcal/d)0.35 (0.01; 0.005)0.001
 Daily physical activity (units/d)−0.14 (−0.17; 0.01)0.088
Corrected <0.001
Model 2
 REE (Kcal/d)2.15 (0.06; 0.33)0.006
 Daily physical activity (units/d)−0.10 (−0.15; 0.03)0.202
 Fat-free mass (Kg)−1.81 (−9.81; −0.85)0.020
Corrected <0.001
Model 3
 REE (Kcal/d)−0.43 (−0.08; 0.01)0.060
 Daily physical activity (units/d)−0.12 (−0.16; 0.02)0.139
 Fat mass (Kg)0.94 (0.74; 2.31)<0.001
Corrected <0.001
Model 4
 REE (Kcal/d)0.09 (−0.32; 0.14)0.435
 Daily physical activity (units/d)0.07 (−10.17; 9.09)0.119
 Fat mass (Kg)1.7 (0.6; 2.8)0.003
 Fat-free mass (Kg)1.3 (−4.8; 7.5)0.657
Corrected <0.001

Adjusted for age and BMI group (0: anorexia nervosa; 1: normal weight; 2: obesity).