Representative MSIA mass spectra from two participants of the upper and lower quartile of TG concentrations.

Participant 1 (upper panel) is a 15 years old male with a BMI z-score of 1.6, TG of 36 and HDL of 41 mg/dL. In contrast, participant 2 (lower panel) is a 14 years old male with a BMI z-score of 2.73, TG of 224 and HDL of 36 mg/dL. Compared to the participant with lower TG concentrations, mass spectrum from the individual with hypertriglyceridemia reveals a greater ratio of apoC-III0a, apoC-III0b, and apoC-III1 to apoC-III2.