Student’s t-test

Welch t-test

Discriminant analysis

Variables

Osteoporosis

AFF

P

P

Number

45

9

Age (years)

80.1 ± 10.0

79.9 ± 10.3

0.962

Laboratory examinations

ALP (IU/L)

248 ± 104

248 ± 103

0.993

Ca (mg/dL)

9.14 ± 0.38

9.64 ± 0.62

0.043

<0.001

IP (mg/dL)

3.49 ± 0.42

3.61 ± 0.69

0.619

P1NP (µg/L)

58.9 ± 37.2

44.5 ± 22.4

0.296

TRACP5b (mU/dL)

285 ± 138

389 ± 267

0.316

Intact PTH (pg/mL)

42.6 ± 22.1

37.0 ± 18.6

0.504

25(OH)D (ng/mL)

23.7 ± 8.5

13.3 ± 3.5

<0.001

0.030

BMD (g/cm2)

Lumbar spine

0.719 ± 0.155

0.717 ± 0.189

0.961

Proximal femur

0.470 ± 0.118

0.512 ± 0.218

0.632

Femoral curvature (angle)

Lateral

3.4 ± 3.5

12.1 ± 5.5

<0.001

0.968

Anterior

10.5 ± 2.5

18.4 ± 5.0

0.002

<0.001