Table 3.
Comparison of the nail sizes derived from the various anthropometric parameters after correction with the ideal nail size.
| Measurement | Correlation to ideal nail [r (p)] | Accuracy (%) | Incidence of incorrect nail predicted (%, 95% CI) | Incidence of longer than ideal nail (%, 95% CI) | Incidence of shorter than ideal nail (%, 95% CI) |
|---|---|---|---|---|---|
| (TT-A) +11 nail | 0.966 (p = 0.01) | 81 | 19 (0.11–0.27) | 8 (0.03–0.13) | 11 (0.05–0.17) |
| (K-MM) −33 nail | 0.953 (p = 0.01) | 69 | 31 (0.22–0.40) | 10 (0.04–0.16) | 21 (0.13–0.29) |
| (K-A) −25 nail | 0.960 (p = 0.01) | 76 | 24 (0.16–0.32) | 13 (0.06–0.20) | 11 (0.05–0.17) |
| (O-MH) +6 nail | 0.853 (p = 0.01) | 51 | 49 (0.39–0.59) | 20 (0.12–0.28) | 29 (0.20–0.38) |
| BH (equation) nail | 0.776 (p = 0.01) | 34 | 66 (0.57–0.75) | 25 (0.17–0.34) | 41 (0.31–0.51) |