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Table 7 Logistic regression for predictors of sitting the UMAT four or more times (N = 756) vs once only (N = 110,295) (Nagelkerke R Square 0.097)

From: Practice effects in medical school entrance testing with the undergraduate medicine and health sciences admission test (UMAT)

Predictor variable (reference group in brackets)

N

B

S.E.

Sig.

Exp (B)

95% CI for exp (B)

Lower

Upper

UMAT-1 Quartiles (4)

27584

      

  UMAT-1 Quartile 1

27217

2.327

0.187

<0.001

10.24

7.11

14.77

  UMAT-1 Quartile 2

27603

2.037

0.179

<0.001

7.67

5.39

10.89

  UMAT-1 Quartile 3

28647

1.330

0.184

<0.001

3.78

2.64

5.43

UMAT-2 Quartiles (4)

27754

      

  UMAT-2 Quartile 1

27255

0.320

0.132

0.016

1.38

1.06

1.79

  UMAT-2 Quartile 2

27555

0.146

0.133

0.273

1.16

0.89

1.50

  UMAT-2 Quartile 3

28487

0.164

0.135

0.222

1.18

0.91

1.53

UMAT-3 Quartiles (4)

29438

      

  UMAT-3 Quartile 1

27321

-0.438

0.119

<0.001

0.645

0.51

0.82

  UMAT-3 Quartile 2

27517

-0.255

0.116

0.027

0.775

0.62

0.97

  UMAT-3 Quartile 3

26775

-0.022

0.112

0.841

0.98

0.79

1.22

Age (≤ 16 yr of age)

1175

      

  17 yr

39603

-0.530

0.313

0.091

0.59

0.32

1.09

  18 yr

48714

-0.835

0.313

0.008

0.43

0.24

0.80

  19 yr

9191

-1.347

0.331

<0.001

0.26

0.14

0.50

  20 - 30 yr

10563

-0.831

0.326

0.011

0.436

0.23

0.83

  > 30 yr

1805

-0.935

0.428

0.029

0.393

0.17

0.91

Gender (Females)

64437

      

  Males

46614

0.480

0.076

<0.001

1.617

1.39

1.88

Language spoken at home (English)

77800

      

  Asian Languages

29175

0.376

0.082

<0.001

1.456

1.24

1.71

  European Languages

2246

0.022

0.274

0.936

1.022

0.60

1.75

  Other Languages

1830

0.490

0.212

0.021

1.633

1.08

2.48

School type (Government)

51344

      

  Catholic

19967

0.031

0.106

0.769

1.032

0.84

1.27

  Independent

36891

-0.019

0.094

0.840

0.981

0.82

1.18

  Other

418

-0.456

0.259

0.078

0.634

0.38

1.05

  TAFE

2431

0.868

0.425

0.041

2.383

1.04

5.48

Country (Australia)

97839

      

  New Zealand

12101

1.863

0.092

<0.001

6.441

5.38

7.71

  Other Country

1111

0.380

0.454

0.403

1.463

0.60

3.56

Aboriginal & Torres Strait Islander (ATSI)

110517

      

  Non-ATSI

534

0.082

0.583

0.888

1.086

0.35

3.40

  1. (Significant P-values are boldfaced).
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