Table 2. Distribution of the study cohort workers by cumulative stomach absorbed dose from internally deposited alpha-particles of incorporated plutonium.
| Cumulative stomach alpha-dose, Gy | Males | Females | Both sexes | |||
|---|---|---|---|---|---|---|
| Number | % | Number | % | Number | % | |
| Entire cohort | ||||||
| [0–0.0002) | 2930 | 52.57 | 1256 | 51.64 | 4186 | 52.29 |
| [0.0002–0.001) | 1585 | 28.44 | 628 | 25.82 | 2213 | 27.64 |
| [0.001–0.005) | 821 | 14.73 | 403 | 16.57 | 1224 | 15.29 |
| [0.005+ | 238 | 4.26 | 145 | 5.97 | 383 | 4.78 |
| Total | 5574 | 100.00 | 2432 | 100.00 | 8006 | 100.00 |
| Mean ± SD | 0.0011 ± 0.0038 | 0.0022 ± 0.0100 | 0.0014 ± 0.0064 | |||
| Median (Min–Max) | 0.0002 (0.0–0.1103) | 0.0002 (0.0–0.1727) | 0.0002 (0.0–0.1727) | |||
| Stomach cancer cases | ||||||
| [0–0.0002) | 75 | 47.47 | 21 | 46.67 | 96 | 47.29 |
| [0.0002–0.001) | 41 | 25.95 | 16 | 35.56 | 57 | 28.08 |
| [0.001–0.005) | 30 | 18.99 | 7 | 15.56 | 37 | 18.23 |
| [0.005+ | 12 | 7.59 | 1 | 2.21 | 13 | 6.40 |
| Total | 158 | 100.00 | 45 | 100.00 | 203 | 100.00 |
| Mean ± SD | 0.0013 ± 0.0029 | 0.0007 ± 0.0014 | 0.0012 ± 0.0026 | |||
| Median (Min–Max) | 0.0002 (0.0–0.0173) | 0.0002 (0.0–0.0089) | 0.0002 (0.0–0.0173) | |||