Table 1

Odds ratios for a traffic accident for Toxoplasma-infected subjects

Subset

N victims

N controls

Odds Ratio

C.I.(95%)

P


15–29 years

59 [21, 35.6%]

249 [38, 15.3%]

3.07

1.63–5.79

<0.001

30–44 years

25 [9, 36.0%]

67 [15, 22.4%]

1.95

0.72–5.29

0.190

45–59 years

39 [17, 43.6%]

90 [22, 24.4%]

2.39

1.08–5.29

0.032

60–70 years

23 [11, 47.8%]

40 [9, 22.5%]

3.16

1.05–9.53

0.041

Total

146 [58, 39.7%]

446 [84, 18.8%]

2.65

1.76–4.01

<0.001

Men

85 [30, 35.3%]

230 [39, 16.9%]

2.71

1.54–4.79

<0.001

Women

61 [28, 45.9%]

216 [45, 20.8%]

2.68

1.43–5.02

0.002

Drivers

90 [35, 38.9%]

446* [84, 18.8%]

2.75

1.68–4.48

<0.001

Pedestrians

56 [23, 41.1%]

446* [84, 18.8%]

2.57

1.39–4.78

0.003


* We used all 446 subjects as controls in the marked tests, as no information was available on the driver/pedestrian status of subjects in the control set. It seems reasonable to suppose that prevalence of latent toxoplasmosis is similar in pedestrians and drivers in the control set. Odds ratios (ORs), i.e., the odds in favour of traffic accident for the Toxoplasma-infected subjects divided by the odds in favour of traffic accident for the Toxoplasma-negative subjects, are listed for particular age strata; Mantel-Haenszel inferences of a common OR estimate (taking into account age-stratification of the data) are listed for other categories of subjects. The numbers in brackets in columns 2 and 3 show the number (and percentage) of Toxoplasma-positive subjects. All p-values are given for two-tailed tests.

Flegr et al. BMC Infectious Diseases 2002 2:11   doi:10.1186/1471-2334-2-11

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