Search

Objective: To estimate de magnitude of Pb poisoning (≥5μg/dL blood) in 1-4 year old children and to identify the contribution of lead-glazed ceramics use (LGC) as a source of exposure in the 32 Mexican states., Materials and Methods: Using the results from a sample of capillary blood lead (BPb) we estimated the prevalence of Pb poisoning, it's association with LGC and national distribution., Results: The national prevalence of Pb poisoning was 17.4% representing 1.4 million children. The prevalence was 30.7% among LGC users and 11.8% in non-users. In 17 states the prevalence of Pb poisoning was ≥10%, in 11 states between 5-10%, and in 4 states <5%., Conclusions: There is a geographic differential distribution of the problem; confirming the association with LGC and estimating the contribution of other Pb exposure sources. This information offers a guide to implement preven-tion and control actions in Mexico., Competing Interests: Declaration of conflict of interests. The authors declare that they have no conflict of interests.

Copyright of Salud Pública de México is the property of Instituto Nacional de Salud Publica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective. To analyze the association between documented sources of lead exposure (PbES) and lead concentrations in capillary blood (BPb) in children 1-4 years old and to quantify the relative contribution of different PbES at national and regional levels. Materials and methods. We used data from Encuesta Nacional de Salud y Nutrición (Ensanut 2022). We considered using lead-glazed traditional pottery (PbTP), environmental, and para-occupational as exposure sources. We estimated the prevalence of intoxication (BPb≥5.0 µg/dL) and geometric means of BPb concentration. We adjusted regression models for BPb (logarithmic scale) and Shapley-Owen decomposition of R² to assess the contribution of each PbES. Results. The studied PbES explains 6% of the total national variability of BPb; 87.3% is explained using LBVPb, 4.2% by environmental exposure sources, and 1.3% by para-occupational exposure. The relative contribution of PbTP use varies across regions, ranging from 38.1 to 76.8%. Some regions show the relevance of PbES of environmental exposure but not para-occupational. Conclusions. Our results confirm that among the studied PbES, the use of PbTP is the most frequently reported. Likewise, the results suggest that the population does not identify the currently documented PbES. [ABSTRACT FROM AUTHOR]

Objective. To describe and update to 2002 the prevalence of lead poisoning in the population of children 1-4 years old in Mexico and describe sources of environmental and paraoccupational exposure, and use of lead-glazed ceramics (LGC). Materials and methods. Study in a sample of children who participated in the Encuesta Nacional de Salud y Nutrición 2022 (Ensanut 2022). The capillary blood lead levels (BLL) were measured. A questionnaire was applied to inquire about sources of lead exposure. Results. BLL were measured in 1 158 under 1-4 years. The national prevalence of lead poisoning (≥5.0 μg/dl) was 16.8% (95%CI:13.6,20.5). The proportion of households that reported exposure to an exclusive source was 21.2, 17.7 and 7.4% for LGC, environmental and paraoccupational exposure respectively. The prevalence of lead poisoning of those exposed to a single source was 21.5%; and this figure increases to 24.2% among those who reported combined exposure to the three types of sources. Conclusion. The national prevalence of lead poisoning remained stable with respect to the same indicator in Ensanut 2018-19. The use of LGC is a relevant source of exposure, but it is not the only one. An important contribution was identified by environmental exposure and to the lesser extent of paraoccupational exposure. [ABSTRACT FROM AUTHOR]

Copyright of Salud Pública de México is the property of Instituto Nacional de Salud Publica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Salud Pública de México is the property of Instituto Nacional de Salud Publica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)