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Table 5 Relative risks of developing systemic symptoms correlated to various risk factors.

From: Small risk of developing symptomatic tick-borne diseases following a tick bite in the Netherlands

 

Exposed individuals

Systemic symptoms

Relative risk (95% CI)

P value

>24 h

30/193

4/30

5.43 (1.44 - 20.54)*

0.0215*

Borrelia

43/190

2/43

1.14 (0.24 - 5.44)

1

Rickettsia

41/190

3/41

2.18 (0.54 - 8.75)

0.3729

Ehrlichia

27/182

2/27

2.30 (0.47 - 11.24)

0.2779

Babesia

26/190

1/26

0.90 (0.12 - 7.03)

1

Any infection

98/190

5/98

1.56 (0.38 - 6.36)

0.7218