General linear mixed models testing fixed and random predictors of recovery of P. putida group strains, P. fluorescens group strains, and their relative recovery, across samples taken from indoor, human, and animal sites from all homes.

a models recovery of P. putida group; includes all houses and sampling periods.b models recovery of P. fluorescens group. Two houses and one summer sampling period excluded due to absence of any indoor, human or animal P. fluorescens recovery.c models recovery of P. putida group vs. P. fluorescens group, given that one of the two was recovered. Two houses, one spring and one summer sampling period excluded due to absence of any samples from which a P. putida or P. fluorescens group isolate was recovered indoors or from humans or animals.ǂ DF indicates degrees of freedom; denominator DF for F test is estimated using the Residual DF method.§ The fixed effects are tested with an approximate F test. The random effects are tested using Wald Z tests.# The effect of season is tested using a joint test for the six pairwise comparisons among seasons, using linear combinations of the least squares meansNS p>0.1+ 0.05* 0.01** 0.001*** pGeneral linear mixed models testing fixed and random predictors of recovery of P. putida group strains, P. fluorescens group strains, and their relative recovery, across samples taken from indoor, human, and animal sites from all homes.