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Cow's-milk allergy is a risk factor for the development of FGIDs in children
Miguel Saps1, Peter Lu, Silvana Bonilla
1Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Gastrointestinal Motility and Functional Bowel Disorders Program, Children's Memorial Hospital, Northwestern University, Chicago, IL, USA. msaps@childrensmemorial.org
Insights
Cow's milk allergy (CMA) in infancy is a significant risk factor for developing functional gastrointestinal disorders (FGIDs) later in childhood. Children with a history of CMA showed a higher prevalence of GI symptoms and FGID diagnoses compared to controls.
Area of Science:
- Pediatric Gastroenterology
- Allergy and Immunology
- Child Health
Background:
- Functional gastrointestinal disorders (FGIDs) are prevalent in children, with unknown multifactorial causes.
- Early-life noninfectious gastrointestinal inflammation, such as cow's milk allergy (CMA), is hypothesized to predispose children to FGIDs.
Purpose of the Study:
- To investigate if a history of cow's milk allergy (CMA) in the first year of life increases the risk of developing functional gastrointestinal disorders (FGIDs) in childhood.
- To compare the prevalence of gastrointestinal symptoms and FGID diagnoses between children with and without a history of CMA.
Main Methods:
- A case-control study involving 52 children diagnosed with CMA in infancy and 53 healthy siblings as controls.
- Participants were aged 4–18 years.
- Gastrointestinal symptoms were assessed using the Pediatric Gastrointestinal Symptoms Rome III version questionnaire.
Main Results:
- Children with a history of CMA reported significantly more gastrointestinal symptoms (44.2% vs. 20.75%) and were diagnosed with FGIDs (19.2% vs. 0%) compared to controls.
- Abdominal pain was a significantly more common symptom in the CMA group (30.8% vs. 9.43%).
- The odds of FGID diagnosis were substantially higher in children with a history of CMA.
Conclusions:
- Cow's milk allergy (CMA) in early childhood is identified as a significant risk factor for the development of functional gastrointestinal disorders (FGIDs).
- These findings suggest a link between early-life allergic inflammation and later development of FGIDs.
Objectives:
Functional gastrointestinal disorders (FGIDs) are common in children. Their pathogenesis remains unknown and is most likely multifactorial. We hypothesized that noninfectious causes of inflammation affecting the gastrointestinal (GI) tract early in life, such as cow's-milk allergy (CMA), can predispose to the development of FGIDs later in childhood.
Patients And Methods:
Case-control study. Subjects were patients between 4 and 18 years diagnosed with CMA in the first year of life at Children's Memorial Hospital in Chicago, IL, between January 2000 and June 2009. Diagnosis of CMA was based on history and clinical findings. Siblings 4 to 18 years of age without a history of CMA were selected as controls. Cases completed the parental form of the Pediatric Gastrointestinal Symptoms Rome III version questionnaire to assess for GI symptoms.
Results:
Fifty-two subjects (mean age 8.1 ± 4.48 years, 62% girls) and 53 controls (mean age 9.7 ± 4.20 years, 55% girls) participated in the study. Twenty-three of 52 subjects (44.2%) reported GI symptoms that included abdominal pain, constipation, or diarrhea compared with 11 of 53 controls (20.75%) (odds ratio 3.03, P = 0.01). Abdominal pain was significantly more common in cases (16/52, 30.8%) versus controls (5/53, 9.43%) (odds ratio 4.27 [1.43-12.7]) (χ² = 7.47, P = 0.01). Abnormal stool habits were more common in cases (15/52, 28.8%) versus controls (7/53, 13.2%), but the difference was not statistically significant. Ten of 52 subjects (19.2%) met the Questionnaire on Pediatric Gastrointestinal Symptoms Rome III version criteria for diagnosis of an FGID (7 irritable bowel syndrome, 2 functional dyspepsia, 1 functional abdominal pain), whereas none in the control group did.
Conclusions:
CMA constitutes a risk factor for the development of FGIDs in children.
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