Table 1.

Predictor variables considered for inclusion in the multivariable regression models

Variable description	Variable type
Farm of origin	Categorical1
BW at arrival, kg	Continuous1
Serum total protein concentration, g/dL	Continuous1
Age at treatment, d	Continuous1
Trial, first or second	Dichotomous1
Time relative to onset of diarrhea, d	Continuous2
Daily ambient maximum temperature, °C	Continuous2
Daily ambient maximum relative humidity, %	Continuous2

¹Offered into all of the models (i.e., odds of milk consumption, time to starter consumption, rate of starter consumption, total starter consumption over the 8-wk study, water intake, rate of BW gain, total BW gain over the 8-wk study, BW at weaning, and time to weaning).

²Offered into the generalized linear mixed models only (i.e., odds of milk consumption, rate of starter consumption, water intake, and rate of BW gain).