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Table 2 Factors independently associated with spotted fever group Rickettsiae (SFGR) seropositivity in multivariate analysis, Reunion island, 2009 (n = 241)

From: Seroprevalence of typhus group and spotted fever group Rickettsia exposures on Reunion island

Rickettsia rickettsii IgG ≥ 1:64

Variables

n

%

Adjusted PPR

95% CI

Age

 < 20 years

0/24

0.00

NA**

 

 20–39 years

13/77

18.84

1

–

 40–59 years

23/102

21.88

1.22

0.55–2.69

 ≥ 60 years

9/38

21.91

1.20

0.46–3.15

Gender

 Female

25/136

17.92

1.05

0.61–1.82

 Male

20/105

16.61

1

 

Microregion

 North

2/17

14.63

1.62

0.30–8.72

 South

6/80

5.73

1

–

 West

26/78

30.07

3.61*

1.32–9.87

 East

11/66

17.01

2.10

0.68–6.42

  1. Data are numbers (n), weighted seropositive rates (%), adjusted prevalence proportion ratios (PPR), and 95% confidence intervals (95% CI)
  2. NA not assessed
  3. P values linked to variable names are given for overall design-based Pearson chi2 tests
  4. P values linked to PPR are given for within-each-category Wald tests
  5. * P < 0.05
  6. ** P < 0.01
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BMC Research Notes

ISSN: 1756-0500

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