Table 8.
Logistic regression model based on prevalence ratios (PR) crude and adjusted (confidence interval 95%), according to the mercury exposure (≥6.0 µg/g), to indigenous ≥12 years old, and to women of childbearing age, Sawré Muybu Indigenous Land, Pará, Amazon, Brazil, 2019.
| Indigenous ≥ 12 Years-Old Both Sex | ||||||
| Characteristics | Crude PR | 95%CI | p-Value | Adjusted PR | 95%CI | p-Value |
| Villages | ||||||
| Sawré Muybu | 1 | 1 | ||||
| Poxo Muybu | 1.3 | (0.9–1.9) | 0.074 | 1.3 | (0.9–1.8) | 0.098 |
| Sawré Aboy | 1.7 | (1.3–2.3) | 0.001 | 1.8 | (1.3–2.3) | 0.001 |
| Income | ||||||
| Yes | 1 | 1 | ||||
| No | 1.3 | (0.9–1.8) | 0.065 | 1.3 | (1.0–1.8) | 0.031 |
| Schooling (years) | ||||||
| ≥10 | 1 | |||||
| 5 to 9 | 1.3 | (0.9–1.9) | 0.250 | -- | ||
| 1 to 4 | 1.6 | (1.0–2.4) | 0.028 | -- | ||
| Illiterate | 0.9 | (0.3–2.6) | 0.881 | -- | ||
| Blood Pressure | ||||||
| Normal | 1 | |||||
| Hypertension | 1.4 | (1.2–1.8) | 0.001 | 1.6 | (1.3–2.1) | 0.001 |
| Women of Childbearing Age | ||||||
| Characteristics | Crude PR | 95%CI | p-Value | Adjusted PR | 95%CI | p-Value |
| Villages | ||||||
| Sawré Muybu | 1 | 1 | ||||
| Poxo Muybu | 2.1 | (1.2–3.7) | 0.010 | 1.9 | (1.0–3.4) | 0.044 |
| Sawré Aboy | 2.4 | (1.4–4.2) | 0.002 | 2.5 | (1.4–4.4) | 0.001 |
| Income | ||||||
| Yes | 1 | -- | ||||
| No | 1.3 | (0.8–2.3) | 0.273 | -- | ||
| Blood Pressure | ||||||
| Normal | 1 | 1 | ||||
| Hypertension | 1.7 | (1.3–2.1) | 0.001 | 1.9 | (1.2–3.3) | 0.012 |
| Pregnant status | ||||||
| No | 1 | 1 | ||||
| Yes | 1.7 | (1.4–2.2) | 0.001 | 1.5 | (1.0–2.1) | 0.029 |