Should Children With Constipation Undergo Blood Lead Level Screening?

Area of Science:

• Pediatric Gastroenterology
• Environmental Health
• Public Health

Background:

• Elevated blood lead levels (BLLs) are a significant public health concern, particularly in children.
• Constipation is a common pediatric gastrointestinal complaint.
• The relationship between constipation and BLLs in children has not been well-established.

Purpose of the Study:

• To compare the prevalence of elevated BLLs in children presenting with constipation to a gastroenterology clinic with the general population prevalence.
• To identify risk factors for elevated BLLs in this pediatric cohort.

Main Methods:

• Retrospective chart review of 441 children screened for BLLs at a pediatric gastroenterology clinic.
• Comparison of BLL prevalence in the study cohort to CDC population data.
• Statistical analysis to determine odds ratios for elevated BLLs based on age.

Main Results:

• The prevalence of BLLs > 5 µg/dL was 1.36% in the study cohort, significantly lower than the 4.01% population prevalence.
• No patients exhibited BLLs > 10 µg/dL.
• Children under 5 years old had increased odds of elevated BLLs (OR = 7.5, P < .05).

Conclusions:

• Children evaluated for constipation in a pediatric gastroenterology clinic have a low prevalence of elevated BLLs.
• Routine BLL screening may not be necessary for all children presenting with constipation.
• Younger age (<5 years) is a potential risk factor for elevated BLLs in this population.