Interventions to change health behaviours: evidence-based or evidence-inspired?

  • Binns H
  • Campbell C
  • Brown M
 et al. 
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Abstract

Lead is a common environmental contaminant. Lead exposure is a preventable risk that exists in all areas of the United States. In children, lead is associated with impaired cognitive, motor, behavioral, and physical abilities. In 1991, the Centers for Disease Control and Prevention defined the blood lead level that should prompt public health actions as 10 microg/dL. Concurrently, the Centers for Disease Control and Prevention also recognized that a blood lead level of 10 microg/dL did not define a threshold for the harmful effects of lead. Research conducted since 1991 has strengthened the evidence that children's physical and mental development can be affected at blood lead levels of < 10 microg/dL. In this report we provide information to help clinicians understand blood lead levels < 10 microg/dL, identify gaps in knowledge concerning lead levels in this range, and outline strategies to reduce childhood exposures to lead. We also summarize scientific data relevant to counseling, blood lead screening, and lead-exposure risk assessment. To aid in the interpretation of blood lead levels, clinicians should understand the laboratory error range for blood lead values and, if possible, select a laboratory that achieves routine performance within +/-2 microg/dL. Clinicians should obtain an environmental history on all children they examine, provide families with lead-prevention counseling, and follow blood lead screening recommendations established for their areas. As circumstances permit, clinicians should consider referral to developmental programs for children at high risk for exposure to lead and more frequent rescreening of children with blood lead levels approaching 10 microg/dL. In addition, clinicians should direct parents to agencies and sources of information that will help them establish a lead-safe environment for their children. For these preventive strategies to succeed, partnerships between health care providers, families, and local public health and housing programs should be strengthened.

Author-supplied keywords

  • Advisory Committees
  • Advisory Committees: standards
  • Advisory Committees: trends
  • Centers for Disease Control and Prevention (U.S.)
  • Centers for Disease Control and Prevention (U.S.):
  • Child
  • Developmental Disabilities
  • Developmental Disabilities: blood
  • Developmental Disabilities: diagnosis
  • Developmental Disabilities: epidemiology
  • Developmental Disabilities: therapy
  • Disease Management
  • Humans
  • Infant
  • Lead
  • Lead Poisoning
  • Lead Poisoning: blood
  • Lead Poisoning: diagnosis
  • Lead Poisoning: epidemiology
  • Lead Poisoning: therapy
  • Lead: blood
  • Preschool
  • Risk Assessment
  • United States
  • United States: epidemiology

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Authors

  • Helen J Binns

  • Carla Campbell

  • Mary Jean Brown

  • Monika Ardelt

  • Jacquelynne S Eccles

  • Albert Bandura

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