Skip to main content

Table 5 Two-factor logistic regression analysis on MAT outcome

From: Passive surveillance of Leptospira infection in swine in Germany

General model type III tests of fixed effects

 

DFa

Fb

p c

Year

5

10.79

< .0001

Reason for sampling

2

7.66

0.0005

Interaction

10

1.58

0.1049

Effect

n

Positives %

ORd

CIe

p f

lower

upper

Year

2011 (ref)

5908

16.3

1

–

–

–

2012

5472

19.0

1.490

1.204

1.843

0.0023

2013

5568

19.3

1.251

0.996

1.572

0.1292

2014

5106

19.5

1.296

1.026

1.638

0.1935

2015

4733

21.3

1.951

1.549

2.457

0.0014

2016 / 01 to 09

3042

30.9

2.565

1.862

3.533

0.0240

Reason for sampling

Monitoring (ref)

1813

16.9

1

–

–

–

Reproductive problems

12,017

22.1

1.478

1.189

1.838

0.0017

Unknown reasons

15,999

19.1

1.326

1.068

1.646

0.0093

  1. aDegrees of freedom
  2. bF-test statistics for model parameter
  3. cp-value for F-Test
  4. dodds ratios adjusted for year, reason for sampling, and interaction
  5. elower/upper bound 95% confidence interval for the odds ratio
  6. fp-value for Wald test