Table 1. | Descriptive statistics of the periodontal bone level measurementsa for the variables kV (irrespective exposure time) and exposure time (irrespective kV) |
| Descriptives | Variables kV | Exposure time | |||
|---|---|---|---|---|---|
| kV 63 | kV 70 | 80 ms | 120 ms | 160 ms | |
| Sample size | 96 | 96 | 64 | 64 | 64 |
| Minimum | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Maximum | 1.97 | 2.00 | 1.80 | 2.00 | 1.97 |
| Mean | 0.44 | 0.44 | 0.47 | 0.45 | 0.41 |
| 95% CI | 0.37 - 0.51 | 0.37 - 0.52 | 0.39 - 0.54 | 0.36 - 0.53 | 0.33 - 0.50 |
| SD | 0.33 | 0.35 | 0.32 | 0.34 | 0.35 |
aPeriodontal bone level in mm.
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