Obese patients   (21) Matched control (30) p - value Variable Mean ± SD Mean ± SD PI 126.0 ± 7.9 84.5 ± 39.2 < .001 UI 146.0 ± 6.1 114.3 ± 38.4 < .001 Data are presented as mean ± S.D. Abbreviations:PI, Peroxidation Index; UI, Unsaturation index (see methods)

Table 3: Comparison of Peroxidation index (PI) and Unsaturation index (UI) of morbid obese subjects and healthy controls.