Table 1 Influence of various potentially hazardous factors on micronuclei (MN) counts (after exclusion of 6 cancer cases)
| Â | Â | Number | % | Translocation rate | ||
|---|---|---|---|---|---|---|
Mean MN / 1000 scored | SD | p-value heterogeneity | ||||
Dose (mGy) | 0–19 | 62 | 59.0 | 3.91 | 5.78 | 0.4556 |
20–99 | 29 | 27.6 | 3.48 | 4.32 | ||
100–249 | 4 | 3.8 | 8.50 | 11.21 | ||
250–499 | 7 | 6.7 | 4.95 | 4.11 | ||
≥500 | 3 | 2.9 | 3.67 | 0.58 | ||
Age at buccal sample (years) | 40–49 | 19 | 18.1 | 4.21 | 7.08 | 0.7758 |
50–59 | 32 | 30.5 | 3.40 | 4.98 | ||
60–69 | 38 | 36.2 | 5.12 | 5.61 | ||
≥70 | 16 | 15.2 | 2.48 | 3.67 | ||
Years since last exposure | < 12 | 12 | 10.8 | 4.00 | 5.03 | 0.6956 |
12–13 | 34 | 30.6 | 5.04 | 6.74 | ||
≥ 14 | 57 | 51.4 | 3.45 | 4.77 | ||
Unknown | 2 | 1.8 | 3.50 | 4.95 | ||
Days of active work in Chornobyl exclusion zone | 0 | NA | NA | NA | NA | 0.7813 |
1–29 | 19 | 17.1 | 3.30 | 4.40 | ||
30–59 | 45 | 40.5 | 3.87 | 5.36 | ||
60–89 | 20 | 18.0 | 6.03 | 7.89 | ||
90–179 | 14 | 12.6 | 3.47 | 3.53 | ||
≥ 180 | 7 | 6.3 | 2.48 | 3.21 | ||
Smoking status | Never smoker/missing | 40 | 38.1 | 3.85 | 5.85 | 0.3187 |
Former and current smokers | 65 | 61.9 | 4.14 | 5.30 | ||
Alcohol consumption status | Never drinker/missing | 24 | 22.9 | 3.82 | 6.50 | 0.6585 |
Former and current drinkers | 81 | 77.1 | 4.09 | 5.20 | ||
Work as industrial radiographer | Never | 101 | 96.2 | 4.03 | 5.45 | 0.0516 |
Ever | 1 | 1.0 | 15.00 | 0.00 | ||
Unknown | 3 | 2.9 | 0.33 | 0.58 | ||
Work with potential radiation exposure (other than Chornobyl) | Never | 90 | 85.7 | 4.27 | 5.71 | 0.5483 |
Ever | 14 | 13.3 | 2.74 | 3.89 | ||
Unknown | 1 | 1.0 | 1.00 | 0.00 | ||
Work in nuclear industry (including Chornobyl NPP) | Never | 97 | 92.4 | 4.18 | 5.67 | 0.1794 |
Ever | 5 | 4.8 | 3.27 | 0.83 | ||
Unknown | 3 | 2.9 | 0.33 | 0.58 | ||
Work in army with potential radiation exposure (excluding Chornobyl) | Never | 98 | 93.3 | 4.28 | 5.60 | 0.0307 |
Ever | 5 | 4.8 | 0.60 | 0.89 | ||
Unknown | 2 | 1.9 | 0.50 | 0.71 | ||
Work with potential radiation exposure (excluding Chornobyl) | Never | 100 | 95.2 | 4.18 | 5.57 | 0.2626 |
Ever | 3 | 2.9 | 1.33 | 2.31 | ||
Unknown | 2 | 1.9 | 0.50 | 0.71 | ||
Radiotherapy for conditions other than cancer | Never | 103 | 98.1 | 4.04 | 5.52 | 0.3920 |
Ever | 1 | 1.0 | 6.67 | 0.00 | ||
Unknown | 1 | 1.0 | 0.00 | 0.00 | ||
Any dental X-rays | Never | 43 | 41.0 | 4.23 | 6.11 | 0.1709 |
Ever | 62 | 59.0 | 3.89 | 5.06 | ||
Any chest X-rays | Never | 53 | 50.5 | 3.42 | 5.52 | 0.4753 |
Ever | 50 | 47.6 | 4.71 | 5.51 | ||
Unknown | 2 | 1.9 | 3.33 | 4.71 | ||
Any bone X-rays | Never | 57 | 54.3 | 4.51 | 6.37 | 0.3192 |
Ever | 47 | 44.8 | 3.54 | 4.22 | ||
Unknown | 1 | 1.0 | 0.00 | 0.00 | ||
X-rays other than dental, chest, bone | Never | 73 | 69.5 | 3.65 | 5.58 | 0.0776 |
Ever | 31 | 29.5 | 5.06 | 5.27 | ||
Unknown | 1 | 1.0 | 0.00 | 0.00 | ||
Total | Â | 105 | 100.0 | 4.03 | 5.49 | Â |