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Table 1 Main clinical characteristics of the 15 patients with IJO

From: Idiopathic juvenile osteoporosis: a cross-sectional single-centre experience with bone histomorphometry and quantitative computed tomography

 

Sex

Familial bone history

Genetic or skin analysis

Clinical score

Age first referral (years)

Age first symptom (years)

Time between first symptom and diagnosis (years)

Centile-size at diagnosis

Main initial symptom

Back pains

Legs pains

Chest

Vertebral compression fracture

Other symptoms

1

M

3 fractures mother, brother of pt2

Negative

2

15.4

6.0

9.4

90

fracture

No

No

No

No

Increased urinary NTX

2

F

Osteoporosis mother, sister of pt1

NP

1

13.5

5.0

8.5

45

back pain

Yes

No

No

No

Transient hyperPTH

3

M

No

Negative

2

8.2

2.5

5.7

95

fracture

No

No

No

No

No

4

M

Osteoporosis grand-mother

Negative

2

14.3

14.0

0.3

85

fracture

Yes

Yes

No

No

Increased urinary NTX

5

F

No

Negative

1

5.9

5.5

0.4

50

fracture

No

No

No

No

No

6

M

Osteoporosis grand-mother

NP

1

13.3

10.5

2.8

75

fracture

No

No

No

No

No

7

F

No

Negative

1

7.8

7.6

0.2

90

osteopenia

No

No

No

No

No

8

M

Rheumatoidarthritis mother

Negative

2

12.9

8.0

4.9

80

fracture

Yes

Yes

No

No

Skin hyperpigmentation, Low 25-vitD

9

M

Parathyroid adenoma father

Negative

2

10.2

3.5

6.7

90

fracture

No

No

No

No

No

10

M

Twin brother (pt 11) with fractures

Negative

2

13.9

5.0

8.9

98

fracture

No

No

No

No

No

11

M

Twin brother (pt 10) with fractures

Negative

1

13.9

13.0

0.9

98

fracture

No

No

No

No

No

12

M

Osteoporosis grand-mother

Negative

2

5.5

1.5

4.0

15

fracture

No

Yes

No

No

No

13

M

Scoliosis father

NP

2

8.1

5.0

3.1

95

fracture

Yes

No

Yes

Yes

No

14

M

No

NP

2

9.5

9.0

0.5

15

fracture

Yes

Yes

Yes

Yes

Osteomyelitis radius and avascular necrosis, Transient hypercalciuria

15

F

NA

NA

2

10.0

NA

NA

NA

fracture

NA

NA

NA

NA

NA

  1. NA: non available data.
  2. NP: not performed.
  3. M/F: male/female.
  4. PTH: parathyroid hormone.