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Table 2 Multivariable logistic regression models assessing the seasonal and yearly TBP prevalence variations in nymphs. Odds ratios and their associated 95% confidence intervals obtained from the best model of TBP seasonal and yearly prevalence in questing nymphs

From: A three-years assessment of Ixodes ricinus-borne pathogens in a French peri-urban forest

Model

TBP

Variable

Odds ratio

95% CI

Significant difference

Low

High

1

B. burgdorferi (s.l.)

Spring

Ref

 

Autumn

4.53

1.50

12.49

Yes

Summer

1.69

0.75

3.89

No

Winter

1.73

0.25

7.01

No

2014

Ref

 

2015

2.93

1.12

9.14

Yes

2016

4.48

1.60

14.53

Yes

2017

2.45

0.57

9.95

No

2

B. miyamotoi

Spring

Ref

 

Autumn

0

na

8.3275E+218

No

Summer

0

na

2.26397E+88

No

Winter

28.60

1.03

800.00

Yes

3

A. phagocytophilum

2014

Ref

 

2015

0.20

0.08

0.42

Yes

2016

0.16

0.04

0.45

Yes

2017

0.65

0.30

1.32

No

4

R. helvetica

Spring

Ref

 

Autumn

0

0

6.7759E+11

No

Summer

3.10

1.27

7.85

Yes

Winter

0

na

1.1447E+145

No

2014

Ref

 

2015

1.34

0.54

3.39

No

2016

0.81

0.12

3.24

No

2017

0.16

0.01

0.87

Yes

  1. Abbreviations: CI, confidence interval; ref, reference; na, not applicable