Table 1.

Factors independently associated with typhus group Rickettsiae (TGR) seropositivity in multivariate analysis, Reunion island, 2009 (n = 241)

Rickettsia typhi IgG ≥ 1:64
Variables	n	%	Adjusted PPR	95% CI
Age
< 20 years	1/24	2.07	0.13*	0.01–0.91
20–39 years	14/77	16.35	1	–
40–59 years	19/102	13.44	0.81	0.40–1.64
≥ 60 years	5/38	10.28	0.51	0.18–1.42
Gender
Female	19/136	11.69	0.74	0.40–1.35
Male	20/105	17.19	1	–
Microregion**
North	0/17	0.00	NA	–
South	8/80	6.76	1	–
West	20/78	23.22	2.53*	1.07–5.97
East	11/66	17.74	2.21	0.85–5.70

Data are numbers (n), weighted seropositive rates (%), adjusted prevalence proportion ratios (PPR), and 95% confidence intervals (95% CI)

NA not assessed

P values linked to variable names are given for overall design-based Pearson chi2 tests

P values linked to PPR are given for within-each-category Wald tests

* P < 0.05

** P < 0.01