Factor analysis was applied to the compositional data from paired and crossover experiments to determine elements consistently associated with each other in CAPs samples.
In crossover experiments, one dog of a pair received CAPs exposure, while its partner was concurrently exposed to filtered air.
It is important to note that BAL data were from paired experiments only, and hematologic data were from crossover experiments.
Red blood cell parameters [daily mean (SE) of 6 samples] related to animal exposures obtained in crossover experiments related to animal exposure.
We performed exploratory graphical linear regression analyses to identify associations between biologic responses and CAPs mass, component data, or weather parameters from paired and crossover experiments.
Weather data were not associated with alterations in biologic responses in exploratory graphical analyses of either paired or crossover experiments.
We determined factor scores for the paired and crossover experiments.