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Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Lead poisoning among refugee children resettled in Massachusetts, 1995 to 1999
P L Geltman1, M J Brown, J Cochran
1Refugee and Immigrant Health Program, Massachusetts Department of Public Health, Boston, Massachusetts, USA.
Insights
Elevated blood lead (BPb) levels were found in over 11% of newly arrived refugee children, with those from developing nations at highest risk. Follow-up testing is crucial as some children developed elevated BPb after arrival.
Area of Science:
- Environmental Health
- Pediatric Health
- Public Health
Background:
- Lead poisoning is a documented concern in US immigrant and refugee populations.
- Limited data exists on the prevalence and risk factors of elevated blood lead (BPb) in newly arrived refugee children.
Purpose of the Study:
- To determine the prevalence of elevated BPb levels in recently arrived refugee children.
- To identify risk factors associated with elevated BPb in this population.
Main Methods:
- Analysis of BPb levels in refugee children under 7 years old arriving in Massachusetts (1995-1999).
- Examined predictors including gender, age, birthplace, testing time, parasitic infections, anemia, and growth retardation.
Main Results:
- 11.3% of 693 children had BPb levels ≥10 µg/dL upon arrival.
- Children from developing countries, particularly Somalis and Vietnamese (27%), showed the highest prevalence.
- Country of birth was the strongest predictor; no age association found.
Conclusions:
- Recently arrived refugee children exhibit a higher prevalence of elevated BPb compared to US-born children.
- Children from developing countries are at significant risk due to environmental exposures.
- A notable percentage acquired elevated BPb post-arrival, highlighting the need for follow-up testing and considering refugee status a risk factor.
Objective:
Lead poisoning has been reported among immigrant and refugee populations in the United States; however, prevalences of elevated blood lead (BPb) and risk factors have not been described fully among newly arrived refugee children. This study was conducted to address this lack of data.
Methods:
We performed analysis of BPb levels among a cohort of refugee children, aged <7 years, who arrived in Massachusetts between July 1, 1995, and December 31, 1999. Gender, age, birthplace, time of year of lead testing, intestinal parasitoses, anemia, and growth retardation were examined as predictors of elevated BPb.
Results:
BPb levels >/=10 microgram/dL were found in 11.3% of 693 children shortly after their arrival in the United States. Children from developing countries had the highest prevalences, including 27% of Somalis and Vietnamese. Country of birth was the strongest predictor of elevated BPb. No association between elevated lead and age was found. Among 213 children with BPb tests >/=6 months after the initial test, 7% had newly elevated levels of >/=10 microgram/dL.
Conclusions:
The prevalence of elevated BPb levels in recently arrived refugee children is more than twice that of US-born children. Children who are at particular risk are those from developing countries where environmental exposures are more ubiquitous. In addition, a significant percentage of refugees acquired elevated levels after arrival, thus suggesting the importance of follow-up testing of refugee children. Refugee status should be considered a risk factor for lead poisoning.
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