Quantification of Fecal Calprotectin Concentration Difference Between Infants Aged Under 4 Months Old Suffering From Functional Gastrointestinal Disorders (FGID) and Infants Aged Under 4 Months Old Free From Disorders : a Transversal Case-control Monocentric Study

There is a high prevalence of FGID among infants : 30 % for regurgitations, 20 % for colitis , 15 % for functional constipation.This represents a frequent motive for pediatrics consultation : 23 to 28 % of medical consultations in this population are consequent to gastrointestinal symptoms among infants aged under 4 months old. This can lead to numerous inappropriate or unrecommended medication prescriptions. Currently, fecal calprotectin threshold are only validated by science societies for children aged 5 years old and more. This study aims to quantify the difference of fecal calprotectin between a population of infants for whom no FGID has been finally detected, and a population of infants for whom FGID have been detected during the gastro-pediatrics consultation, , in order to later determine wether it is possible to validate a threshold in a population of infants aged under 4 months old.