Table 3.
Creatinine-normalized and unadjusted As levels in urine for the 67 participants who provided samples from the Korean cohort (n = 108).
| Adjusted (μg/g creatinine) | Unadjusted (μg/L) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sum As speciesa | Total Asb | As+3 and As+5 | DMA | MMA | Sum As species | Total As | As+3 and As+5 | DMA | MMA | |
| GMc | 27.1 | 104.3 | NA | NA | NA | 21.8 | 78.1 | NA | NA | NA |
| Mean | 37.2 | 152.1 | 2.9 | 33.0 | 1.5 | 30.6 | 127.3 | 2.4 | 27.0 | 1.2 |
| SD | 25.0 | 162.1 | 3.5 | 24.2 | 2.3 | 26.7 | 156.6 | 3.9 | 25.3 | 2.0 |
| 5th | 7.4 | 21.8 | < LOQ | 6.5 | < LOQ | 7.1 | 17.5 | < LOQ | 5.5 | < LOQ |
| 50th | 36.3 | 98.6 | 0.9 | 28.1 | < LOQ | 21.6 | 75.0 | 0.8 | 19.8 | < LOQ |
| 95th | 75.8 | 387.5 | 9.7 | 62.2 | 6.5 | 90.4 | 326.6 | 10.8 | 77.0 | 6.0 |
Abbreviations: < LOQ, less than limit of quantification; NA, not available. 5th, 50th, and 95th are percentiles.
a
Sum of As species is DMA, MMA, and As+3 and As+5 combined.
b
Total As was determined also and represents sum of As species and AsB plus other unidentified forms of As species.
c
GM values were not determined, as 33, 1, and 40 participants had analytical MMA, DMA, and As+3 and As+5 levels, respectively, below the limit of detection.