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Frequency of the difference in mean values on location landmark identification in X, Y and Z coordinates.
| Range | Coordinates | Total | ||||||
|---|---|---|---|---|---|---|---|---|
| X | Y | Z | ||||||
| n | % | n | % | N | % | n | % | |
| x ≥ 2 mm | 0 | (0) | 0 | 0 | 2 | (6.6) | 2 | (2.22) |
| 1< x < 2 | 6 | (20.0) | 8 | (26.6) | 5 | (16.6) | 19 | (21.1) |
| 0.5 < x ≤ 1 | 10 | (33.3) | 13 | (43.3) | 10 | (33.3) | 33 | (36.6) |
| x ≤ 0.5 | 14 | (46.6) | 9 | (30.0) | 13 | (43.3) | 36 | (40.0) |
| Total | 30 | (100) | 30 | (100) | 30 | (100) | 90 | (100) |
