Diagnostic efficacy of fecal markers combined with alarm symptoms in distinguishing functional and organic abdominal pain in children

The combination of alarm symptoms with fecal FC and OB tests provides a sensitive and specific non-invasive strategy for the differentiation of organic from FAP in children. The mild elevation of FC is likely indicative of functional constipation rather than inflammation, and attention should be given to diet and substances that affect OB outcome, specifically in children.