Table 5 Comparison of six formulas in different ACD subgroups.

ACD > 3.50 mm

BU II-TK

SRK/T-TK

Haigis-TK

Hoffer Q-TK

Holladay 1-TK

Holladay 2-TK

n = 30

MAE

0.458 ± 0.49

0.551 ± 0.559

0.555 ± 0.519

0.672 ± 0.543

0.754 ± 0.55

0.632 ± 0.498

SD

0.650

0.753

0.711

0.733

0.822

0.728

MedAE

0.252^{a b #}

0.329^a

0.405^a

0.545

0.643*

0.518

BU II-K

SRK/T-K

Haigis-K

Hoffer Q-K

Holladay 1-K

Holladay 2-K

MAE

0.474 ± 0.509

0.557 ± 0.598

0.556 ± 0.519

0.649 ± 0.56

0.736 ± 0.598

0.621 ± 0.531

SD

0.682

0.791

0.724

0.741

0.851

0.752

MedAE

0.296^{c #}

0.310

0.404^c

0.320

0.565*

0.471

ACD 2.75–3.50 mm

BU II-TK

SRK/T-TK

Haigis-TK

Hoffer Q-TK

Holladay 1-TK

Holladay 2-TK

n = 130

MAE

0.337 ± 0.324

0.424 ± 0.397

0.399 ± 0.351

0.426 ± 0.384

0.45 ± 0.406

0.408 ± 0.386

SD

0.465

0.580

0.532

0.576

0.607

0.561

MedAE

0.272^{d #}

0.301

0.315

0.328

0.345*

0.278

BU II-K

SRK/T-K

Haigis-K

Hoffer Q-K

Holladay 1-K

Holladay 2-K

MAE

0.319 ± 0.315

0.422 ± 0.387

0.378 ± 0.332

0.41 ± 0.366

0.438 ± 0.399

0.397 ± 0.365

SD

0.446

0.572

0.503

0.552

0.594

0.539

MedAE

0.265^{e #}

0.328

0.309

0.295

0.359*

0.285

ACD < 2.75 mm

BU II-TK

SRK/T-TK

Haigis-TK

Hoffer Q-TK

Holladay 1-TK

Holladay 2-TK

n = 52

MAE

0.338 ± 0.309

0.362 ± 0.367

0.358 ± 0.374

0.398 ± 0.437

0.358 ± 0.402

0.363 ± 0.395

SD

0.462

0.519

0.515

0.541

0.507

0.532

MedAE

0.270*

0.250

0.258

0.260

0.240^#

0.240

BU II-K

SRK/T-K

Haigis-K

Hoffer Q-K

Holladay 1-K

Holladay 2-K

MAE

0.32 ± 0.296

0.362 ± 0.36

0.357 ± 0.351

0.392 ± 0.421

0.363 ± 0.379

0.363 ± 0.376

SD

0.439

0.515

0.498

0.528

0.497

0.519

MedAE

0.258

0.263

0.285

0.283*

0.265

0.247^#