Table 6 Final multivariable mixed-effects logistic regression model, with cow nested in herd being random factors, of risk factors significantly associated with SCM in the Savannah region of Nigeria
Variable | Level | OR (adjusted) | SE | z | P value | 95%CI | *Chi square | *DF | *P value |
|---|---|---|---|---|---|---|---|---|---|
Age (years) | Old | 1.00 | Ref | Ref | Ref | Ref | 17.40 | 1 | < 0.001 |
Young | 0.283 | 0.087 | −4.11 | < 0.001 | 0.155; 0.516 | ||||
Washing hands before milking | No | 1.00 | Ref | Ref | Ref | Ref | 9.05 | 1 | 0.003 |
Yes | 0.173 | 0.103 | −2.95 | 0.003 | 0.054; 0.554 | ||||
Breed | White Fulani | 1.00 | Ref | Ref | Ref | Ref | 7.83 | 3 | 0.050 |
Sokoto Gudali | 2.601 | 1.222 | 2.03 | 0.042 | 1.036; 6.533 | ||||
Holstein-Friesian | 1.914 | 0.875 | 1.42 | 0.156 | 0.781; 4.688 | ||||
Rahaji | 8.205 | 6.956 | 2.48 | 0.013 | 1.557; 43.226 | ||||
Quarter | LFQ | 1.00 | Ref | Ref | Ref | Ref | 17.13 | 3 | 0.001 |
LHQ | 0.462 | 0.103 | −3.46 | 0.001 | 0.298; 0.715 | ||||
RFQ | 0.446 | 0.010 | −3.61 | < 0.001 | 0.287; 0.691 | ||||
RHQ | 0.614 | 0.135 | −2.22 | 0.027 | 0.399; 0.945 |