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Clinicians’ grading for furrow depth. 1 denotes the surface with the shallowest furrows while 3 is the surface with the deepest furrows.
| Grader ID | Group 1 | Group 2 | ||||
|---|---|---|---|---|---|---|
| V1 | V2 | V3 | V4 | V5 | V6 | |
| C1 | 1 | 3 | 2 | 2 | 1 | 3 |
| C2 | 3 | 2 | 1 | 1 | 2 | 3 |
| C3 | 3 | 2 | 1 | 1 | 2 | 3 |
| C4 | 2 | 3 | 1 | 1 | 2 | 3 |
| C5 | 2 | 3 | 1 | 1 | 2 | 3 |
| Mean | 2.2 | 2.6 | 1.2 | 1.2 | 1.8 | 3.0 |
