| Neurobehavioral performance of adult and adolescent agricultural workers. | |
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MedLine Citation:
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PMID: 17141876 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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There are many occupational hazards associated with working in agriculture including risk of injury and exposure to pesticides. Research examining neurobehavioral effects of pesticide exposure have focused primarily on the acute effects in adults working in agriculture. Organophosphate poisoned populations have shown a consistent pattern of deficits when compared to a non-exposed or non-poisoned population on measures of motor speed and coordination, sustained attention, and information processing speed. Fewer studies have examined the effect of long-term low-level exposure on nervous system functioning in agricultural workers. Pesticides are thought to pose a considerably higher risk to children than to adults, yet little is known about the extent or magnitude of health problems related to occupational exposure to pesticides in children and adolescents. The present study compared the neurobehavioral performance of adolescents and adults working in agriculture and examined the impact of years working in agriculture on neurobehavioral performance. One hundred seventy-five Hispanic adolescent and adults completed a neurobehavioral test battery consisting of 10 computer-based tests measuring attention, response speed, coordination and memory. Age, gender, school experience, and years working in agriculture all impacted performance on the neurobehavioral tests. Comparison of adult and adolescents did not reveal decreased neurobehavioral performance in adolescents. On several tests the adolescents performed better than adult counterparts. The adolescents and adults were engaged in comparable agricultural working environments at the time of the neurobehavioral testing. These findings suggest that, at the time of exposure to pesticides, adolescents are not more vulnerable to the effects of working in agriculture. Evidence from this study suggests that cumulative exposure to low levels of pesticides over many years of agricultural work is associated with neurological impairment as measured by the Selective Attention, Symbol-Digit, Reaction Time tests. Experience handling pesticides was also associated with deficits in neurobehavioral performance. |
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Authors:
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Diane S Rohlman; Michael Lasarev; W Kent Anger; Jennifer Scherer; Jeffrey Stupfel; Linda McCauley |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. Date: 2006-12-04 |
Journal Detail:
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Title: Neurotoxicology Volume: 28 ISSN: 0161-813X ISO Abbreviation: Neurotoxicology Publication Date: 2007 Mar |
Date Detail:
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Created Date: 2007-06-05 Completed Date: 2007-08-21 Revised Date: 2007-12-03 |
Medline Journal Info:
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Nlm Unique ID: 7905589 Medline TA: Neurotoxicology Country: Netherlands |
Other Details:
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Languages: eng Pagination: 374-80 Citation Subset: IM |
Affiliation:
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Center for Research on Occupational and Environmental Toxicology (CROET), L606, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA. rohlmand@ohsu.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Age Factors Agricultural Workers' Diseases / chemically induced*, physiopathology, psychology Air Pollutants / adverse effects* Attention / drug effects Behavior / drug effects* Educational Status Female Hispanic Americans Humans Male Memory / drug effects Middle Aged Nervous System / drug effects*, physiopathology Neuropsychological Tests Oregon Pesticides / adverse effects* Psychomotor Performance / drug effects Questionnaires Reaction Time / drug effects Risk Assessment Risk Factors Sex Factors Time Factors |
| Grant Support | |
ID/Acronym/Agency:
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R01 OH008057-01/OH/NIOSH CDC HHS |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants; 0/Pesticides |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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