Table 2. Contingency tables and prevalences by intermediate region and cattle breeding.
| Variable | Trypanosomosis | Total | Prevalence (%) | Prevalence ratio | |
|---|---|---|---|---|---|
| Positive | Negative | ||||
| Intermediate Region | |||||
| Caxias Do Sul | 0 | 19 | 19 | 0.0 | 0.0 |
| Ijuí | 31 | 52 | 83 | 37.3 | 6.4 |
| Passo Fundo | 40 | 98 | 138 | 29.0 | 5.0 |
| Pelotas | 26 | 81 | 107 | 24.3 | 4.2 |
| Porto Alegre | 14 | 66 | 80 | 17.5 | 3.0 |
| Santa Cruz Do Sul | 9 | 36 | 45 | 20.0 | 3.4 |
| Santa Maria | 4 | 65 | 69 | 5.8 | 1.0 |
| Uruguaiana | 46 | 104 | 150 | 30.7 | 5.3 |
| Cattle breeding | |||||
| Beef Cattle | 46 | 104 | 150 | 30.7 | 1.7 |
| Dairy Cattle | 80 | 215 | 295 | 27.1 | 1.2 |
| Not informed | 44 | 202 | 246 | 17.9 | 1.0 |