Table 3. Risk at contact points for S. mansoni infection.
| Contact point | Contact(%) | Infected(%) | OR (95% CI | p-value |
|---|---|---|---|---|
| 1 | 210 (17.3) | 103 (48.4) | 2.14 (1.48–3.09) | <0.001 |
| 2 | 245 (20.1) | 112 (45.5) | 2.10 (1.33–3.30) | 0.001 |
| 3 | 270 (22.2) | 107 (39.5) | 0.71 (0.44–1.16 | 0.168 |
| 4 | 308 (25.3) | 123 (39.8) | 1.16 (0.77–1.74) | 0.484 |
| 5 | 354 (29.1) | 153 (43.1) | 2.28 (1.62–3.22) | <0.001 |
| 6 | 297 (24.4) | 96 (32.1) | 0.73 (0.50–1.07) | 0.103 |
| 7 | 370 (30.4) | 130 (34.8) | 1.65 (1.18–2.31) | 0.004 |
| 8 | 237 (19.5) | 93 (39.1) | 1.14 (0.80–1.64) | 0.460 |
| Other | 571 (47.0) | 165 (28.6) | 1.02 (0.77–1.37) | 0.875 |
1. Reservoir dam; 2. Gardens; 3. Gardens entrance; 4. Fountain Street; 5. Iron Bridge; 6. São Rafael Passageway; 7. Swamp beside soccer field; 8. Manguete and Snake Streets