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Table 1 Multivariable logistic regression estimates of odds ratios of different months having MFD, including herd as a random effect

From: The prevalence, temporal and spatial trends in bulk tank equivalent milk fat depression in Irish milk recorded herds

Month

Odds Ratio

z

p value

95% Conf Interval

 Jan

2.24

0.31

0.00

1.70

2.93

 Feb

3.04

0.4

0.00

2.36

3.93

 Mar

5.18

0.62

0.00

4.09

6.56

 Apr

23.43

2.66

0.00

18.75

29.27

 May

27.01

3.06

0.00

21.63

33.73

 Jun

12.39

1.43

0.00

9.88

15.53

 Jul

8.38

0.98

0.00

6.66

10.53

 Aug

5.55

0.66

0.00

4.39

7.00

 Sep

2.75

0.35

0.00

2.14

3.53

 Oct

1.27

0.18

0.09

0.96

1.67

 Nov

Reference

    

 Dec

1.86

0.27

0.00

1.40

2.47

Year

     

 2004

Reference

    

 2005

0.73

0.38

0.00

0.66

0.81

 2006

0.77

0.04

0.00

0.69

0.86

 2007

0.79

0.04

0.00

0.71

0.88

 2008

0.57

0.03

0.00

0.51

0.64

 2009

0.54

0.03

0.00

0.48

0.61

 2010

0.62

0.04

0.00

0.55

0.7

 2011

0.54

0.03

0.00

0.47

0.61

 2012

0.29

0.02

0.00

0.25

0.33

 2013

0.2

0.02

0.00

0.17

0.24

 2014

0.37

0.03

0.00

0.32

0.42