Deziel N, Freeman L, Graubard B, Jones R, Hoppin J, Thomas K, Hines C, Blair A, Sandler D, Chen H, Lubin J, Andreotti G, Alavanja M, Friesen M. O44-3 Using meta-regression models to systematically evaluate data in the published literature: relative contributions of agricultural drift, para-occupational, and residential use exposure pathways to house dust pesticide concentrations. Occupational And Environmental Medicine 2016, 73: a84. DOI: 10.1136/oemed-2016-103951.226.Peer-Reviewed Original Research