an epidemiological study of listeriosis in dairy cattle

In Table 3. 23, 7 predictor variables were associated with a decreased risk of
disease. None of the predictor variables was consistently associated with all of the
outcome variables. Only 1 variable was associated with the 4 of the outcome variables,
3 with 2 of them and the rest with 1 of the outcome variables.
Table 3. 22. The predictor variables associated with an increased risk of disease
Outcome variables
Predictor Variables O MC WC SE NS
herd size + + + + +
Listeriosis in beef cattle + + + + +
feeding maize silage + + + + +
ring feeder for maize silage (indoor) + + + + +
big bale + + + + -
purchased grass silage + + + - +
ring feeders for grass silage (indoor) + + + + -
ring feeders for hay (indoor) + + + + -
96