Table 4.
Derived estimates of mean, minimum and maximum values of Dg (mGy) by time period for populations of exposed women (all estimates presented to two significant digits).
| Period | CBT = 3 cm |
CBT = 5 cm |
CBT = 8 cm |
All CBT1 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | Min | Max | Mean | Min | Max | Mean | Min | Max | Mean | Min | Max | |
| 1960–1964 | 12 | 0.52 | 64 | 13 | 0.52 | 48 | 13 | 0.47 | 79 | - | - | - |
| 1965–1969 | 12 | 0.70 | 61 | 14 | 0.56 | 55 | 15 | 0.23 | 90 | - | - | - |
| 1970–1974 | 5.4 | 0.080 | 52 | 6.1 | 0.070 | 60 | 6.7 | 0.060 | 102 | - | - | - |
| 1975–1979 | 3.9 | 0.070 | 82 | 4.8 | 0.050 | 103 | 5.6 | 0.050 | 170 | - | - | - |
| 1980–1984 | 2.7 | 0.20 | 12 | 3.4 | 0.18 | 7.7 | 4 | 0.16 | 26 | - | - | - |
| 1985–1989 | 1.8 | 0.023 | 9.0 | 2.6 | 0.021 | 12 | 3 | 0.019 | 17 | - | - | - |
| 1990–1994 | 1.5 | 0.059 | 6.4 | 1.8 | 0.055 | 6.9 | 2 | 0.049 | 14.6 | 2 | 0.19 | 7.8 |
| 1995–1999 | 0.83 | 0.072 | 5.3 | 1.3 | 0.092 | 5.8 | 1.4 | 0.082 | 9.5 | 1.7 | 0.3 | 7.6 |
| 2000–2004 | 1.4 | 0.34 | 2.1 | 2 | 0.54 | 2 | 2.2 | 0.48 | 6.3 | 2.2 | 0.59 | 7.5 |
| 2005- | - | - | - | - | - | - | - | - | - | 1.4 | 0.58 | 2.9 |
1
Results from Tier 1 publications only. These are preferred values.