Table 2.
Logistic regression models for the presence of E. vermicularis in 309 (88 rural and 221 urban) individuals, both individually and grouped into 70 families in General Mansilla, Argentina
| Variable | Risk category | Coefficient | Odds Ratio |
| For the total of individuals, n = 309 | |||
| Affiliation | Son/daughter | 1.267 | 3.550 |
| Housing | Satisfactory | 0.829 | 2.288 |
| Garbage | Not collected | 1.372 | 3.944 |
| Water | Running | 0.951 | 2.591 |
| Abdominal pain | Present | 0.555 | 1.742 |
| Sleeping disorders | Present | 0.561 | 1.752 |
| Constant | -1.825 | ||
| For rural individuals, n = 88 | |||
| Affiliation | Son/daughter | 10.246 | 28 167 |
| Housing | Satisfactory | 2.857 | 17.5 |
| Age (yr) | Eldest son/daughter | 0.316 | 1.372 |
| Bathroom | Non-existent | 2.160 | 8.670 |
| Sleeping disorders | Present | 1.967 | 7.151 |
| Constant | -12.493 | ||
| For urban individuals, n = 221 | |||
| Affiliation | Son/daughter | 1.176 | 3.241 |
| Housing | Satisfactory | 0.917 | 2.5 |
| Water | Running | 1.372 | 3.937 |
| Abdominal pain | Present | 0.690 | 1.993 |
| Constant | -1.612 | ||
| For positive families, n = 40 | |||
| Housing | Satisfactory | 2.749 | 15.625 |
| Water | Running | 2.614 | 13.699 |
| Garbage | Not collected | 2.75 | 15.636 |
| Bathroom | Non-existent | 2.403 | 11.056 |
| Constant | 0.338 | ||