FGL2 and irritable bowel syndrome: Higher FGL2 concentrations were also associated with increased symptom severity (IBS-SSS, <i>r</i> = 0.241), greater depressive symptoms (PHQ-9, <i>r</i> = 0.279), higher HADS scores (<i>r</i> = 0.222), and poorer quality of life (IBS-QOL, <i>r</i> = 0.198) (all <i>P</i> < 0.05).