Observational studyBMC public health2025
Prevalence of lead poisoning among artisanal gold miners in French Guiana in 2022: a multicenter cross-sectional observational survey.
Observational study in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05540470 (Radical CUREfor MAlaria Among Highly Mobile and Hard-to-reach Populations in the Guyanese Shield), which is not on this map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Radical CUREfor MAlaria Among Highly Mobile and Hard-to-reach Populations in the Guyanese Shield
Who cites it
2 citing papers in PubMed.
- A multicentric cross-sectional survey to assess cardiovascular risk factors among persons working in informal gold mines in French-Guiana.BMC public health · 2026Article
- Psychosocial vulnerability of people working in informal gold mines in French Guiana: a multicentric cross-sectional survey in 2024-2025.Frontiers in public health · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLead poisoning is a significant public health issue globally. In French Guiana, a French overseas territory in South America, several studies have reported widespread lead exposure in the local population. However, the associated risk factors remain insufficiently understood. People working in informal gold mining share part of their lifestyle with French Guianese communities. The objectives of this study were to describe the prevalence of lead poisoning and to identify associated risk factors among gold mine workers in 2022.
methodsThis cross-sectional descriptive study was based on data collected by questionnaire and blood sampling. Persons working in informal gold mines were enrolled on the logistic rear bases on the Surinamese and Brazilian sites of the bordering rivers. Blood lead levels were measured on dry blood spots (50 µl). Using a threshold of 100 µg/L, single and multiple regressions were used to assess the associated factors.
resultsAmong the 526 persons included, the median age was 38 years and 73.5% were men. The prevalence of lead poisoning was 44.7% (95%CI = 40.4%-49.0%). The factors associated with a BLL over 100 µg/L were: amount of time spent in gold mining (OR = 1.31 [1.09-1.58]), occupation with mud exposure (OR = 1.67 [1.13-2.48]), working in the Southwestern region (OR = 2.09 [1.34-3.27]) and consuming game (OR = 1.58 [1.06-2.36]).
conclusionThe people working on gold mining sites are highly exposed to lead poisoning. The risk factors are suggestive of environmental contamination and differ from those suspected in the population of French Guiana.
trial registrationThis study is registered on ClinicalTrials.gov under the identifier NCT05540470 (registered on September 12, 2022).
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