Table 1.
Coefficient of variation (CV) in per cent for the 3 densiometers used in 7 Gruen zones
| Zone: | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| Expert | 2.0 | 1.5 | 2.0 | 1.4 | 2.3 | 2.3 | 2.8 |
| Hologic | 0.5 | 5.8 | 1.5 | 0.6 | 1.5 | 1.1 | 0.8 |
| Prodigy | 2.6 | 2.1 | 1.7 | 3.6 | 2.2 | 5.1 | 2.9 |
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