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Residential exposure to pesticides as risk factor for childhood and young adult brain tumors: A systematic review and meta-analysis
AbstractBackgroundAccumulating evidence suggests a positive association between exposure to non-agricultural pesticides and childhood brain tumors (CBT).Objective(1) To conduct a systematic review and meta-analysis of published studies on the association between residential/household/domestic exposure to pesticides and childhood brain tumors. (2) To clarify variables that could impact the results.MethodsPublications in English were identified from a MEDLINE search through 28 February 2017 and from the reference list of identified publications. Risk estimates were extracted from 18 case-control studies published between 1979 and 2016 and study quality assessments were performed. Summary odds ratios (mOR) were calculated according to fixed and random-effect meta-analysis models. Separate analyses were conducted after stratification for study quality, critical exposure period, exposure location, specific exposures, pesticide category, application methods, type of pest treated, type of CBT, child's age at diagnosis and geographic location.ResultsStatistically significant associations were observed with CBT after combining all studies (mOR: 1.26; 95% CI: 1.13–1.40) without evidence of inconsistency between study results or publication bias. Specifically, increased risks were observed for several groupings and more particularly for gliomas and exposure involving insecticides. Statistical significance was also reached for high quality studies, for all exposure periods, for indoor exposure and, more particularly, during the prenatal period for all stratifications involving insecticides (except for outdoor use), for pet treatments, for flea/tick treatment, for studies from USA/Canada and studies from Europe (borderline) as well as for data from studies including children of up to 10years at diagnosis and of up to 15years.ConclusionsOur findings support an association between residential exposure to pesticides and childhood brain tumors. Although causality cannot be established, these results add to the evidence leading to recommend limiting residential use of pesticides and to support public health policies serving this objective.
HighlightsResidential/domestic exposure to pesticides is a risk factor for childhood brain tumor.This association appears with consistency when combining all studies.Increased risks arise particularly for indoor exposure, involving insecticides.Results support the need to reduce residential exposure to pesticides.
Residential exposure to pesticides as risk factor for childhood and young adult brain tumors: A systematic review and meta-analysis
AbstractBackgroundAccumulating evidence suggests a positive association between exposure to non-agricultural pesticides and childhood brain tumors (CBT).Objective(1) To conduct a systematic review and meta-analysis of published studies on the association between residential/household/domestic exposure to pesticides and childhood brain tumors. (2) To clarify variables that could impact the results.MethodsPublications in English were identified from a MEDLINE search through 28 February 2017 and from the reference list of identified publications. Risk estimates were extracted from 18 case-control studies published between 1979 and 2016 and study quality assessments were performed. Summary odds ratios (mOR) were calculated according to fixed and random-effect meta-analysis models. Separate analyses were conducted after stratification for study quality, critical exposure period, exposure location, specific exposures, pesticide category, application methods, type of pest treated, type of CBT, child's age at diagnosis and geographic location.ResultsStatistically significant associations were observed with CBT after combining all studies (mOR: 1.26; 95% CI: 1.13–1.40) without evidence of inconsistency between study results or publication bias. Specifically, increased risks were observed for several groupings and more particularly for gliomas and exposure involving insecticides. Statistical significance was also reached for high quality studies, for all exposure periods, for indoor exposure and, more particularly, during the prenatal period for all stratifications involving insecticides (except for outdoor use), for pet treatments, for flea/tick treatment, for studies from USA/Canada and studies from Europe (borderline) as well as for data from studies including children of up to 10years at diagnosis and of up to 15years.ConclusionsOur findings support an association between residential exposure to pesticides and childhood brain tumors. Although causality cannot be established, these results add to the evidence leading to recommend limiting residential use of pesticides and to support public health policies serving this objective.
HighlightsResidential/domestic exposure to pesticides is a risk factor for childhood brain tumor.This association appears with consistency when combining all studies.Increased risks arise particularly for indoor exposure, involving insecticides.Results support the need to reduce residential exposure to pesticides.
Residential exposure to pesticides as risk factor for childhood and young adult brain tumors: A systematic review and meta-analysis
Van Maele-Fabry, Geneviève (Autor:in) / Gamet-Payrastre, Laurence (Autor:in) / Lison, Dominique (Autor:in)
Environmental International ; 106 ; 69-90
19.05.2017
22 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
ASTRO , astroglial brain tumors , CBT , childhood brain tumor , CNS , central nervous system , CYPs , cytochrome P450s , 95% CI , 95% confidence interval , 2,4-D , 2,4-dichlorophenoxy acetic acid , ICCC , international classification of children cancer , ICD , international classification of diseases , MA , meta-analysis , mOR , summary odd ratio estimate , OC , organochlorine , OP , organophosphorus , OR , odds ratio , PNET , primitive neuroectodermal tumors , SE , standard error , 95% UI , 95% uncertainty interval , Child , Brain tumors , Residential exposure , Pesticides , Systematic review , Meta-analysis
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