Table 1.
Sociodemographic and clinical characteristics of the study population, according to the village of residence in Sawré Muybu indigenous territory, Pará State, Brazilian Amazon, 2019.
| Characteristics | Overall (n = 107) |
Village | |||
|---|---|---|---|---|---|
| Poxo Muybu | Sawré Aboy | Sawré Muybu | p-Value 1 | ||
| (n = 34) | (n = 23) | (n = 50) | |||
| Sex | |||||
| Female | 51 (47.7) | 16 (47.1) | 10 (43.5) | 25 (50.0) | 0.87 |
| Male | 56 (52.3) | 18 (52.9) | 13 (56.5) | 25 (50.0) | |
| Age (years) | |||||
| 12–19 | 36 (33.6) | 15 (44.1) | 11 (47.8) | 10 (20.0) | 0.05 |
| 20–24 | 19 (17.8) | 5 (14.7) | 3 (13.0) | 11 (22.0) | |
| 25–29 | 17 (15.9) | 2 (5.9) | 2 (8.7) | 13 (26.0) | |
| ≥30 | 35 (32.7) | 12 (35.3) | 7 (30.4) | 16 (32.0) | |
| BMI (kg/m2) | |||||
| <18.5 | 3 (2.8) | 2 (5.9) | 1 (4.3) | 0 (0.0) | 0.54 |
| 18.5–24.9 | 66 (61.7) | 19 (55.9) | 16 (69.6) | 31 (62.0) | |
| 25.0–29.9 | 34 (31.8) | 11 (32.4) | 5 (21.7) | 19 (36.0) | |
| ≥30.0 | 4 (3.7) | 2 (5.9) | 1 (4.3) | 1 (2.0) | |
| Hemoglobin 2 | |||||
| ≤11.5 | 5 (4.7) | 1 (3.0) | 3 (13.0) | 1 (2.0) | 0.1 |
| >11.5 | 101 (95.3) | 32 (97.0) | 20 (87.0) | 49 (98.0) | |
| Hg levels ( µ g/g) 3 | |||||
| ≤ 6.0 | 32 (30.5) | 10 (29.4) | 1 (4.3) | 21 (43.8) | 0.003 |
| > 6.0 | 73 (68.2) | 24 (70.6) | 22 (95.7) | 27 (56.2) | |
| ≤7.40 | 53 (50.5) | 19 (55.9) | 3 (13.0) | 31 (64.6) | <0.001 |
| >7.40 | 52 (49.5) | 15 (44.1) | 20 (87.0) | 17 (35.4) | |
| Somatosensory signs | |||||
| Normal | 66 (61.7) | 30 (88.2) | 10 (43.5) | 26 (52.0) | <0.001 |
| Abnormal | 41 (38.3) | 4 (11.8) | 13 (56.5) | 24 (48.0) | |
| Motor functions | |||||
| Normal | 85 (79.4) | 30 (88.2) | 17 (73.9) | 38 (76.0) | 0.3 |
| Abnormal | 22 (20.6) | 4 (11.8) | 6 (26.1) | 12 (20.4) | |
| Cognitive evaluations | |||||
| Normal | 68 (63.6) | 23 (67.6) | 9 (39.1) | 36 (72.0) | 0.02 |
| Abnormal | 39 (36.4) | 11 (32.4) | 14 (60.9) | 14 (28.0) | |
1 p-value obtained from the χ2 test (Pearson p-value) or Fisher’s exact test, when needed. 2 Missing information from 1 individual. 3 Missing information from 2 individuals.