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Table 4 Multivariable linear regression models for IL-10 with time, condition, adrenaline and IL-6 as independent factors

From: Caffeine supplementation induces higher IL-6 and IL-10 plasma levels in response to a treadmill exercise test

  Model 1 Model 2 Model 3
Coefficient p value Coefficient p value Coefficient p value
Input variable
 Time    0.314 0.002 0.329 0.001
 Condition      0.218 0.017
 Adrenaline       n.s.
 IL-6 0.547 < 0.001 0.416 < 0.001 0.379 < 0.001
R2 0.300   0.381   0.427  
Adjusted R2 0.290   0.364   0.404  
F value 32.496 < 0.001 23.070 < 0.001 18.396 < 0.001
R2 change 0.300   0.081   0.046  
F change 32.496 < 0.001 9.856 0.002 5.984 0.017
  1. β values for significant predictors in each model are provided in the coefficient column
  2. n.s. non-significant effect of this factor in any model
  3. Logarithmic transformations of IL-10, IL-6 and adrenaline were used.