Multivariable linear regression models predicting serum TRAIL levels according to selected metabolic characteristics of study participants.

<p>Model 1 adjusted for age and gender.</p><p>Model 2 adjusted for age, gender and C-reactive protein.</p><p>Model 3 adjusted for age, gender, C-reactive protein and all variables included in table.</p><p>Model 4 Model 3 with stepwise backward selection of unnecessary variables (p for removal 0.1).