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Table 3 Multivariable generalized linear mixed model describing the factors associated with presence or absence of milking machine-induced short-term change to teat tissue condition from 384 milking observations of 129 cows

From: A longitudinal prospective cohort study investigating the association of premilking stimulation and teat-end shape on milking characteristics and teat tissue condition in dairy cows

Item

ßa (SE)

p

aORb (95% CI)

Intercept

2.14 (0.97)

0.03

–

Milking session

 

< 0.001

 

 Milking #1

−0.07 (0.38)

 

0.92 (0.44–1.93)

 Milking #2

−1.48 (0.41)

 

0.23 (0.10–0.51)

 Milking #3

-Referent-

  

DIMc

 

0.005

 

  ≤ 100

2.00 (0.63)

 

7.40 (2.17–25.26)

 101–200

0.75 (0.61)

 

2.11 (0.63–7.01)

  > 200

-Referent-

  

LAGd

−0.27 (0.10)

0.005

0.76 (0.63–0.92)

  1. aLinear regression coefficient
  2. bAdjusted odds ratio
  3. cStage of lactation (days in milk)
  4. dPreparation lag time (s, 1-unit = 10 s); time between first teat stripping and milking unit attachment