Table 4.
Proportion of arsenic species in FMV and spot urine samples.
| Variable | N | % | %InAs FMV | %InAs SPOT | %DMA FMV | %DMA SPOT | %MMA FMV | %MMA SPOT |
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| All | 131 | 100 | 7.9 | 9.6 | 76.0 | 72.3 | 16.0 | 18.1 |
| Bladder cancer | ||||||||
| Cases | 50 | 38.2 | 7.0 | 9.4 | 77.7 | 73.0 | 15.2 | 17.5 |
| Controls | 81 | 61.8 | 8.6 | 9.9 | 74.9 | 71.7 | 16.6 | 18.4 |
| Gender | ||||||||
| Women | 18 | 13.7 | 9.7 | 10.2 | 76.0 | 72.9 | 14.3 | 16.9 |
| Men | 113 | 86.3 | 7.7 | 9.6 | 75.9 | 72.1 | 16.3 | 18.3 |
| Age | ||||||||
| <65 | 50 | 38.2 | 8.2 | 9.8 | 75.9 | 71.8 | 16.0 | 18.4 |
| 65–75 | 56 | 42.0 | 8.7 | 10.1 | 74.7 | 70.9 | 16.2 | 19.0 |
| >75 | 26 | 19.8 | 6.0 | 8.5 | 79.0 | 76.1 | 15.0 | 15.4 |
| Smoking | ||||||||
| Never | 43 | 32.8 | 8.2 | 8.9 | 75.5 | 72.2 | 16.2 | 18.8 |
| Ever | 88 | 66.4 | 7.9 | 9.9 | 76.2 | 72.5 | 15.9 | 17.6 |
| Race | ||||||||
| White | 123 | 93.9 | 7.9 | 9.6 | 76.2 | 72.3 | 16.1 | 18.0 |
| Other | 8 | 6.1 | 8.5 | 9.6 | 75.7 | 71.6 | 15.6 | 18.3 |