This definition appears rarely
To assess pyrethroid exposure, we used urinary metabolite measurements of 3-PBA, cis-DCCA, and trans-DCCA in spot urine samples provided by participants during the physical examination. The metabolite 3-PBA represents exposure to permethrin, cypermethrin, deltamethrin, allethrin, resmethrin, fenvalerate, cyhalothrin, fenpropathrin, and tralomethrin; and cis– and trans- DCCA represent exposure to the cis- and trans- isomers, respectively, of permethrin, cypermethrin, and cyfluthrin (Barr et al. 2010; CDC 2009). Two other pyrethroid metabolites [4-fluoro-3-phenoxybenzoic acid.