Table 2.
Characteristics of the study population.
| Characteristic | Median, %, or n | 5th–95th percentiles |
|---|---|---|
| Age [years (median)] | 34 | 19–64 |
| Time of residency [years (median)] | 25 | 3.0–53 |
| Town of residency [SAC/other village (n)]a | 154/34 | |
| BMI [kg/m2 (median)] | 25 | 19–35 |
| Coca users (%) | 53 | |
| Tobacco users (%) | 3.7 | |
| Alcohol users (%) | 0.0 | |
| Total U-As [µg/L (median)]b | 210 | 33–502 |
| iAs (%) | 12 | 4.8–23 |
| MMA (%) | 8.1 | 4.2–15 |
| DMA (%) | 80 | 65–89 |
| N6AMT1 haplotypes (n) | ||
| Haplotype 1: AATG (2/1/0 copies)c | 30/81/77 | |
| Haplotype 3: ATTG (2/1/0 copies)c | 5/46/137 | |
| Haplotype 9: GTGT (0/1/2 copies)c | 72/73/43 | |
| AS3MT haplotype (n) | ||
| Haplotype 2: GCCATCAC (2/1/0 copies)d | 90/75/21 | |
| aSAC: San Antonio de los Cobres; other villages: Santa Rosa de los Pastos Grandes, Pocitos, Olacapato, Cobres, Rosario de Lerma. bTotal U-As was adjusted to the mean specific gravity of 1.020 g/mL. cNumber of copies associated with lower %MMA are denoted first. dNumber of copies that have previously been shown to have an association with lower %MMA are denoted first (Engström etal. 2011). | ||