Table 5 Correlation between familiarity with the 2018 classification and participant performance on each item (Polychoric correlation coefficient)
|
Periodontal cohort (n1 = 31) |
Nonperiodontal cohort (n2 = 33) |
Overall (N = 64) | |
|---|---|---|---|
| Case 1, Stage | 0.38 | − 0.60 | − 0.08 |
| Case 1, Grade | 0.17 | − 0.49 | 0.16 |
| Case 1, Risk factor | 0.86 | − 0.33 | 0.06 |
| Case 2, Stage | 0.44 | − 0.55 | − 0.06 |
| Case 2, Grade | 0.02 | 0.25 | 0.21 |
| Case 2, Risk factor | 0.41 | 0.44 | 0.32 |
| Case 3, Stage | 0.15 | 0.34 | 0.52 |
| Case 3, Grade | 0.11 | 0.06 | 0.12 |