Skip to main content

Table 4 Regression model for square root of average PB-PAH exposures of each subject across all the sampling sessions (N = 28; R 2= 0.65; adjusted R 2= 0.61)

From: Modeling personal particle-bound polycyclic aromatic hydrocarbon (pb-pah) exposure in human subjects in Southern California

Variable Beta Standard error p-value Partial R2 VIF
Intercept 1.68 0.31 <.0001   0
Percent of in-vehicle travel time 12.19 2.35 <.0001 0.39 1.01
Percent of weekday time 1.14 0.39 0.0078 0.16 1.03
Had work-related exposure to traffic pollutants (yes/no)a 0.77 0.30 0.0163 0.10 1.03
  1. aWork-related exposure includes working around parking garage, kiosk, auto shop, buses, trucks, or heavy traffic, or driving a car/bus/truck during the work.