Table 1 Socio-demographic characteristics of the study populations and seroprevalence of T. gondii infection.
Fruit and vegetable workers (n = 200) | Controls (n = 400) | All (n = 600) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Prevalence of | Prevalence of | Prevalence of | |||||||||||||
T. gondii infection | P | T. gondii infection | P | T. gondii infection | P | ||||||||||
Characteristic | No. | % | No. | % | value | No. | % | No. | % | value | No. | % | No. | % | value |
Age groups (years) | |||||||||||||||
30 or less | 74 | 37.0 | 4 | 5.4 | 0.06 | 148 | 37 | 10 | 6.8 | 0.001 | 222 | 37.0 | 14 | 6.3 | 0.0004 |
31-50 | 60 | 30.0 | 2 | 3.3 | 120 | 30 | 3 | 2.5 | 180 | 30.0 | 5 | 2.8 | |||
51-70 | 41 | 20.5 | 7 | 17.1 | 84 | 21 | 8 | 9.5 | 125 | 20.8 | 15 | 12 | |||
> 70 | 25 | 12.5 | 2 | 8.0 | 48 | 12 | 10 | 20.8 | 73 | 12.2 | 12 | 16.4 | |||
Gender | |||||||||||||||
Male | 155 | 77.5 | 12 | 7.7 | 1.00 | 310 | 77.5 | 27 | 8.7 | 0.26 | 465 | 77.5 | 39 | 8.4 | 0.29 |
Female | 45 | 22.5 | 3 | 6.7 | 90 | 22.5 | 4 | 4.4 | 135 | 22.5 | 7 | 5.2 | |||
Birth place | |||||||||||||||
Durango State | 165 | 90.2 | 10 | 6.1 | 0.33 | 351 | 88.4 | 25 | 7.1 | 0.32 | 516 | 89.0 | 35 | 6.8 | 0.22 |
Other Mexican states | 18 | 9.8 | 2 | 11.1 | 45 | 11.3 | 6 | 13.3 | 63 | 10.9 | 8 | 12.7 | |||
Abroad | - | 1 | 0.3 | 0 | 0.0 | 1 | 0.2 | 0 | 0 | ||||||
Residence place | |||||||||||||||
Durango State | 198 | 99.0 | 15 | 7.6 | 1.00 | 391 | 98.5 | 30 | 7.7 | 0.56 | 589 | 98.7 | 45 | 7.6 | 0.77 |
Other Mexican states | 2 | 1.0 | 0 | 0.0 | 5 | 1.3 | 1 | 20.0 | 7 | 1.2 | 1 | 14.3 | |||
Abroad | - | 1 | 0.3 | 0 | 1 | 0.2 | 0 | 0 | |||||||
Residence area | |||||||||||||||
Urban | 132 | 67.3 | 9 | 6.8 | 0.42 | 300 | 77.5 | 23 | 7.7 | 0.88 | 432 | 74.1 | 32 | 7.4 | 0.56 |
Suburban | 9 | 4.6 | 0 | 0.0 | 24 | 6.2 | 2 | 8.3 | 33 | 5.7 | 2 | 6.1 | |||
Rural | 55 | 28.1 | 6 | 10.9 | 63 | 16.3 | 6 | 9.5 | 118 | 20.2 | 12 | 10.2 | |||
Educational level | |||||||||||||||
No education | 15 | 7.5 | 2 | 13.3 | 0.56 | 16 | 4 | 3 | 18.8 | 0.22 | 31 | 5.2 | 5 | 16.1 | 0.20 |
1-6 years | 100 | 50.0 | 9 | 9.0 | 104 | 26.2 | 8 | 7.7 | 204 | 34.2 | 17 | 8.3 | |||
7-12 years | 66 | 33.0 | 3 | 4.5 | 141 | 35.5 | 13 | 9.2 | 207 | 34.7 | 16 | 7.7 | |||
> 12 years | 19 | 9.5 | 1 | 5.3 | 136 | 34.3 | 7 | 5.1 | 155 | 26.0 | 8 | 5.2 | |||
Socio-economic level | |||||||||||||||
Low | 83 | 44.1 | 6 | 7.2 | 1.00 | 124 | 31.7 | 10 | 8.1 | 1.00 | 207 | 35.8 | 16 | 7.7 | 0.89 |
Medium | 105 | 55.9 | 8 | 7.6 | 267 | 68.3 | 21 | 7.9 | 372 | 64.2 | 29 | 7.8 | |||