Odds Ratios for plasma IL-6 levels for O. viverrini infected individuals with1 and without Cholangiocarcinoma (CCA)2.

1Individual without CCA are the controls from the case-control study in Table 2, that is, O. viverrini infected individuals who are negative for Advanced Periductal Fibrosis (APF) by ultrasound and were age, sex, and nearest-neighbor matched with APF positive individuals (see Table 1).2CCA cases were from the biological repository of the Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen University, Thailand.3Individuals with undetectable levels of plasma IL-6 concentration are used as the reference group in Quartile 1.4Odds Ratio.595% Confidence Interval.6Models were adjusted for age and sex simultaneously.7Not Available.