Table 2.
Comparison of average measurements between impacted and non-impacted groups.
| Over all Mean | SD | Mean Impacted | SD | Mean Non-Impacted | SD | P Value | |
|---|---|---|---|---|---|---|---|
| Age, y | 12.60 | 1.15 | 12.43 | 1.01 | 12.76 | 0.73 | 0.356 |
| Gonial Angle º | 22.75 | 6.61 | 121.98 | 4.88 | 123.52 | 8.10 | 0.468 |
| Space Ratio | 0.97 | 0.27 | 1.26 | 0.27 | 0.80 | 0.12 | <0.001* |
| Ramus Ratio | 0.26 | 0.03 | 0.28 | 0.03 | 0.24 | 0.02 | 0.002* |
| OP-PR Angleº | 69.41 | 6.54 | 73.93 | 7.62 | 66.39 | 4.24 | 0.002* |
* Indicates a statistically significant difference, with a p value of <0.05 Mann-Whitney U test SD = standard deviation y = years ° = degrees