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Difference in absolute error between different formulas.
| Paired group | P values |
|---|---|
| Haigis-SRK/T | 0.062 |
| Holladay-SRK/T | 0.000∗ |
| Hoffer Q-SRK/T | 0.000∗ |
| Holladay-Haigis | 0.000∗ |
| Hoffer Q-Holladay | 0.740 |
| Hoffer Q-Haigis | 0.000∗ |
| Barrett Universal II-SRK/T | 0.000∗ |
| Barrett Universal II-Haigis | 0.000∗ |
| Barrett Universal II-Holladay | 0.000∗ |
| Barrett Universal II-Hoffer Q | 0.000∗ |
∗Statistical significance; α = 0.005.
