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Published on: March 6, 2018
Pesticide exposure and risk of Central Nervous System tumors in children: a systematic review with meta-analysis
Anne Lívia Cavalcante Mota1, Isadora Marques Barbosa1, Andrea Bezerra Rodrigues2
1Programa de Pós- Graduação em Cuidados Clínicos em Enfermagem e Saúde, Universidade Estadual do Ceará (UECE). Av. Dr. Silas Munguba 1700, Campus do Itaperi. 60714-903 Fortaleza CE Brasil. aliviacante@gmail.com.
Abstract:
Central Nervous System (CNS) tumors represent more than half of all childhood malignant neoplasms. The aim of this study was to determine the relationship between environmental exposure to pesticides and the development of CNS tumors in children. We conducted a systematic review of the literature in the PubMed/MEDILINE, Embase, Web of Science, Scopus, and CINAHL databases. The inclusion criteria were cohort and case-control studies investigating the association between exposure to pesticides and CNS tumors (all histological types included in group III of the WHO Classification of Childhood Cancer) in children aged 0-14 years. The meta-analysis was performed using a random effects model and the Mantel-Haenszel method. Strength of association was measured using odds ratios (OR). The review was registered in the International Prospective Register of Systematic Reviews (PROSPERO) under identification number CRD42021209354. The search identified 1,158 studies, 14 of which were included in the review. There was evidence of an association between the development of astrocytomas and exposure to all classes of pesticides (OR 1.50; 95%CI 1.15-1.96; p=0.03). The synthesis of the evidence pointed to a relationship between exposure to pesticides and some histological types of CNS tumors in childhood.
Insights
Childhood central nervous system (CNS) tumors may be linked to pesticide exposure. This systematic review found evidence associating pesticide exposure with astrocytomas in children.
Area of Science:
- Environmental epidemiology
- Pediatric oncology
- Toxicology
Background:
- Central Nervous System (CNS) tumors are the most common childhood malignant neoplasms.
- Understanding environmental risk factors for pediatric CNS tumors is crucial for prevention and early detection.
Approach:
- Systematic review and meta-analysis of cohort and case-control studies.
- Searched multiple databases (PubMed/MEDILINE, Embase, Web of Science, Scopus, CINAHL).
- Included studies on children aged 0-14 years with exposure to pesticides and CNS tumors.
Key Points:
- A significant association was found between pesticide exposure and astrocytomas (OR 1.50; 95%CI 1.15-1.96; p=0.03).
- The review synthesized evidence from 14 selected studies out of 1,158 initially identified.
- The findings suggest a link between pesticide exposure and specific types of childhood CNS tumors.
Conclusions:
- Environmental pesticide exposure is associated with an increased risk of developing certain childhood Central Nervous System tumors, particularly astrocytomas.
- Further research is warranted to elucidate specific pesticide classes and exposure pathways contributing to pediatric CNS tumor development.
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