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Full-Text Articles in Environmental Public Health
Organophosphate Pesticide Dose Estimation From Spot And 24-Hr Urine Samples Collected From Children In An Agricultural Community, Carly Hyland, Katherine Kogut, Robert B. Gunier, Rosemary Castorina, Cynthia Curl, Brenda Eskenazi, Asa Bradman
Organophosphate Pesticide Dose Estimation From Spot And 24-Hr Urine Samples Collected From Children In An Agricultural Community, Carly Hyland, Katherine Kogut, Robert B. Gunier, Rosemary Castorina, Cynthia Curl, Brenda Eskenazi, Asa Bradman
Public Health and Population Science Faculty Publications and Presentations
Background: Spot urine samples are often used to assess exposure to organophosphate (OP) pesticides in place of “gold standard” 24-hr samples, which are cumbersome to collect. Assessment of non-persistent chemicals using spot urine samples may result in exposure misclassification that could bias epidemiological analyses towards the null. Few studies have examined the validity of measurements of urinary metabolites in spot samples to estimate daily OP dose or the potential implications of reliance on spot samples for risk assessments.
Objective: Examine the validity of using first morning void (FMV) and random non-FMV urine samples to estimate cumulative 24-hr OP pesticide dose …