Table 2 The odds ratio for finding a parasite in Tingo María versus Andabamba/Marabamba houses

Helminths

12*

8

10.50 (1.791–52.59)

*0.0037

Ancylostoma species

2

4

0.75 (0.1281–3.859)

0.7598

Ascaris

lumbricoides

6*

1

16.50 (1.829–195.7)

*0.0037

Necator americanus

0

2

N/A

N/A

Strongyloides stercoralis

7

0

N/A

N/A

Taenia solium

0

0

N/A

N/A

Toxocara canis

1

1

1.615 (0.07940–31.97)

0.7401

Toxocara cati

0

0

N/A

N/A

Trichuris trichiura

4*

1

8.4 (1.046–106.6)

*0.0421

All Protozoa

11

22*

> 100 (1.487–upper bound not estimable)

*0.0233

Protozoa not Acanthamoeba

11

21

0.1746 (0.01295–1.354)

0.1161

Acanthamoeba species

7

17

0.2941 (0.06318–1.184)

0.0906

Blastocystis species

10

21*

8.4 (1.046–106.6)

*0.0421

Giardia intestinalis

3

5

N/A

N/A

Total parasites

14

22

N/A

N/A

Total parasites not Acanthamoeba

13

22

0 (0.00–5.727)

0.2036