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| Age groups (years) | Tested n | Positives n (%) | Doubtful n (%) |
|---|---|---|---|
| < 5 | 495 | 9 (1.8) | 17 (3.4) |
| 5-9 | 626 | 18 (1.9) | 30 (4.8) |
| 10-14 | 622 | 12 (2.9) | 30 (4.8) |
| 15-19 | 524 | 24 (4.6) | 35 (6.7) |
| 20-29 | 872 | 46 (5.3) | 56 (6.4) |
| 30-39 | 578 | 34 (5.9) | 41 (7.1) |
| 40-49 | 413 | 24 (5.8) | 39 (9.4) |
| 50-59 | 293 | 19 (6.5) | 18 (6.1) |
| 60-69 | 227 | 17 (7.5) | 17 (7.5) |
| 70-79 | 138 | 9(6.5) | 10 (7.2) |
| > 79 | 55 | 4 (7.3) | 2 (3.6) |
| Unknowna | 37 | 5 (13.5) | 7 (18.9) |
| 4,880 | 221 (4.5) | 302 (6.2) | |
a : Yanomami Indians.
