Table 3.
Formula | Group 1 (24.5 mm ≤AL <27 mm, n=28) |
Group 2 (27.0 mm ≤AL <30 mm, n=47) |
Group 3 (AL ≥30 mm, n=23) |
|||
---|---|---|---|---|---|---|
MNE (D) | MAE (D) | MNE (D) | MAE (D) | MNE (D) | MAE (D) | |
SRK/T | ||||||
Mean±SD | 0.06±0.50 | 0.34±0.36 | 0.04±0.55 | 0.44±0.32 | 0.27±0.78 | 0.65±0.49 |
Range | −1.11-1.52 | 0.00-1.52 | −1.33-1.20 | 0.00-1.33 | −1.41-1.92 | 0.00-1.92 |
Haigis | ||||||
Mean±SD | 0.09±0.53 | 0.41±0.34 | 0.17±0.58 | 0.44±0.41 | 0.00±0.64 | 0.59±0.41 |
Range | −0.90-1.59 | 0.00-1.59 | −1.62-1.89 | 0.00-1.89 | −1.20-1.43 | 0.00-1.43 |
Holladay | ||||||
Mean±SD | 0.45±0.56 | 0.55±0.47 | 0.36±0.65 | 0.59±0.44 | 0.32±1.04 | 0.90±0.58 |
Range | −0.51-1.91 | 0.00−1.91 | −1.11-2.00 | 0.00-2.00 | −2.11-2.20 | 0.00-2.20 |
Hoffer Q | ||||||
Mean±SD | 0.28±0.55 | 0.48±0.38 | 0.23±0.77 | 0.64±0.49 | 0.60±1.02 | 1.00±0.62 |
Range | −1.31-1.22 | 0.00-1.31 | −1.49-1.91 | 0.00-1.91 | −2.00-2.08 | 0.1-2.08 |
Barrett Universal II | ||||||
Mean±SD | 0.07±0.33 | 0.27±0.19 | 0.14±0.32 | 0.29±0.21 | -0.15±0.70 | 0.55±0.44 |
Range | −0.50-0.72 | 0.00-0.72 | −0.71-0.79 | 0.00-0.79 | −1.52-1.73 | 0.00-1.73 |
MNE: Mean numerical error; MAE: Mean absolute error; SD: Standard deviation