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A population-based study on blood lead levels in blood donors

Gilles Delage1, Suzanne Gingras2, Marc Rhainds2,3

  • 1Héma-Québec, Saint-Laurent, Québec.

Transfusion
|July 15, 2015
PubMed

Insights

Blood lead levels (BLLs) in donors were assessed, with 15.5% exceeding the 0.15 µmol/L threshold. Age and sex were primary predictors of BLLs, crucial for neonatal transfusion safety.

Area of Science:

  • Environmental Health
  • Toxicology
  • Public Health

Background:

  • Emerging evidence suggests blood transfusions may be a significant source of lead exposure in premature infants.
  • This study aimed to assess blood lead levels (BLLs) in a representative blood donor population.
  • It also sought to identify risk factors associated with elevated BLLs (≥0.15 µmol/L).

Purpose of the Study:

  • Determine BLLs in Quebec blood donors.
  • Identify risk factors for elevated BLLs.
  • Inform transfusion practices for neonates.

Main Methods:

  • A cross-sectional study conducted in Quebec from 2006-2007.
  • Included 3490 eligible blood donors providing demographic and lifestyle information via questionnaire.
  • Blood lead analysis performed using inductively coupled plasma mass spectrometry.

Main Results:

  • The geometric mean BLL was 0.082 µmol/L (95% CI, 0.027-0.247).
  • 15.5% of participants had BLLs exceeding 0.15 µmol/L.
  • Multivariate analysis revealed age and sex as primary determinants of BLLs, alongside region, education, dwelling age, occupational/leisure activities, smoking, and alcohol intake.

Conclusions:

  • Blood lead levels in donors are significantly influenced by age and sex.
  • These demographic factors should be considered when evaluating transfusion risks for neonates.
  • Findings highlight the importance of understanding donor BLLs for transfusion safety.
Abstract

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