Table 4 R isk factors analyzed with seropositive inhabitants and household characteristics

Birthplace

 Nuevo Leon vs. other

459/127

43/9

9.36/7.08

0.75

0.35-1.59

0.5961*

Flooring construction material

 Concrete vs. dirt

584/2

51/1

8.73/50

5.72

0.51-64.26

0.2255*

Walls construction material

 Concrete vs. adobe brick

462/124

37/15

8/12.09

1.51

0.80-2.84

0.2194*

 Ceiling construction material Concrete vs. palm leaves and curve lamina tile

446/140

29/23

6.50/16.42

2.52

1.41-4.51

0.0024^‡

Domestic pets and livestock

 Presence vs. absence

561/25

40/12

7.13/48

6.73

3.15-4.39

≤ 0.0001^†

Variable (Residential place of seropositive individuals)

 Urban vs suburban

260/179

12/19

4.61/10.61

2.30

1.08-4.85

0.036^‡

 Urban vs. rural

260/147

12/21

4.61/14.28

3.09

1.48-6.47

0.0025^‡