Analyte Parameter Estimate P-value R2 ΔR 2 a
Summed
Plasmalogens
Intercept 3.786      
  Race (ref. = white) 3.336 <0.0001 0.6801 -
  Gender (ref. = female) 0.912 0.036 0.7414 0.0613
  Animal fat (g) 0.022 0.093 0.7642 0.0228
DGLEAb Intercept 0.015      
  Race (ref. = white) -0.063 0.016 0.504 -
  Gender (ref. = female) 0.074 0.0058 0.5343 0.0303
  Race√óGender -0.091 0.014 0.6179 0.0836
PC(P-16:0/18:1) Intercept 70.297      
  Race (ref. = white) -13.07 <0.0001 0.4503  
a Change of R2 value after adding the covariate to the model. b Dihomo-γ-linolenoyl ethanolamide
Table 3: Multivariable linear models of covariate effects on analytes representing significant lipidomic features. (Analyte levels were modeled as ratios of individual peak intensities divided by the sum of all peak intensities).