Table 1 Average, standard deviation (SD) and range for the measured reference parameters along with correlation and RMSE values for the test group.
Mean ± SD (Range) | All samples | ICRS-based division | ||||||
|---|---|---|---|---|---|---|---|---|
r | RMSE | p | r | RMSE | p | |||
Collagen orientation angle (π) | Superficial | 23.2 ± 12.9 (5.6–74.4) | 0.74 | 7.37 | <0.0001 | 0.86 | 5.91 | <0.0001 |
Deep | 77.1 ± 7.6 (39.2–87.5) | 0.52 | 5.72 | <0.0001 | 0.50 | 5.85 | 0.0001 | |
Collagen content (AU) | Superficial | 21.6 ± 9.2 (1.4–48.3) | 0.62 | 5.84 | <0.0001 | 0.72 | 5.18 | <0.0001 |
Deep | 34.7 ± 9.2 (12.7–68.0) | 0.65 | 5.59 | <0.0001 | 0.78 | 4.81 | <0.0001 | |
PG content (AU) | Superficial | 5.34 ± 2.41 (0.15–18.99) | 0.42 | 1.24 | 0.0018 | 0.69 | 0.97 | <0.0001 |
Deep | 6.47 ± 1.99 (0.50–15.58) | 0.70 | 0.99 | <0.0001 | 0.77 | 0.89 | <0.0001 | |
PG content (OD) | Superficial | 1.02 ± 0.49 (0.09–1.82) | 0.76 | 0.30 | <0.0001 | 0.78 | 0.28 | <0.0001 |
Deep | 1.79 ± 0.23 (0.28–2.00) | 0.63 | 0.10 | <0.0001 | 0.82 | 0.08 | <0.0001 | |