Table 3.
Relative risks of various types of primary glaucoma for different categories of cumulative brain absorbed dose of gamma-ray and neutron exposure lagged for 5 years.
| Cumulative Dose, Gy | Mean Dose, Gy | Number of Cases | RR (95% CI) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| POAG | >HTG | NTG | PACG | POAG | HTG | NTG | PACG | ||
| RR in relation to the cumulative gamma-ray dose, Gy | |||||||||
| 0–0.25 | 0.14 | 270 | 233 | 37 | 17 | 1 | 1 | 1 | 1 |
| 0.25–0.5 | 0.41 | 82 | 69 | 13 | 4 | 0.92 (0.70, 1.20) |
0.90 (0.67, 1.20) |
1.07 (0.52, 2.06) |
1.05 (0.29, 3.03) |
| 0.5–0.75 | 0.68 | 37 | 33 | 4 | 5 | 0.77 (0.52, 1.10) |
0.82 (0.54, 1.20) |
0.53 (0.15, 1.40) |
2.46 (0.76, 6.86) |
| 0.75–1.00 | 0.93 | 42 | 33 | 9 | 2 | 1.14 (0.79, 1.62) |
1.08 (0.71, 1.59) |
1.59 (0.65, 3.53) |
0.89 (0.12, 3.79) |
| ≥1 | 1.19 | 108 | 79 | 29 | 4 | 1.15 (0.88, 1.50) |
1.02 (0.75, 1.38) |
1.88 (1.01, 3.51) |
0.85 (0.21, 2.69) |
| RR in relation to the cumulative neutron dose, Gy | |||||||||
| 0–0.001 | 0.0005 | 72 | 56 | 16 | 1 | 1 | 1 | 1 | 1 |
| 0.001–0.0025 | 0.002 | 24 | 19 | 5 | 1 | 0.88 (0.51, 1.49) |
0.94 (0.50, 1.69) |
0.70 (0.19, 2.07) |
0.88 (0.03, 23.55) |
| 0.0025–0.005 | 0.004 | 22 | 16 | 6 | 1 | 1.09 (0.57, 2.04) |
1.07 (0.51, 2.20) |
1.21 (0.32, 4.23) |
6.60 (0.23, 225) |
| 0.005–0.01 | 0.007 | 6 | 5 | 1 | 0 | 0.94 (0.31, 2.41) |
1.06 (0.29, 3.04) |
0.70 (0.04, 4.36) |
– |
| ≥0.01 | 0.02 | 5 | 3 | 2 | 0 | 3.70 1.04, 11.31) |
2.19 (0.45, 8.08) |
5.17 (0.49, 40.51) |
– |
CI, confidence interval. Gy, gray. POAG, primary open-angle glaucoma. HTG, high-tension glaucoma. NTG, normal-tension glaucoma. PACG, primary angle-closure glaucoma. RR, relative risk. Estimates in bold are statistically significant.