Table 1. Baseline characteristics of the population with Osteogenesis Imperfecta. This was a homogeneous sample with a mean age of 10.5 years. During the prospective follow-up of the patients, a bone chemistry panel was performed.

Retrospective

N = 38

n (%)

Prospective

N = 30

n (%)

Demographic

Age*

10.8 ± 4.26

10.2 ± 4.30

Gender

Female

21 (55)

13 (43)

Male

17 (45)

17 (57)

Size (cm)*

NA

109.34 ± 25.34

Weight (kg)*

NA

31.92 ± 26.70

Clinical Data

Type of OI

[silence classification]

I

18 (47)

18 (60)

III

15 (40)

9 (30)

IV

5 (13)

3 (10)

Wandering

26 (68)

22 (73)

Blue sclera

38 (100)

18 (60)

Dentinogenesis

21 (55)

20 (67)

Total fractures before BP

treatment (types)

I

7 [4-9]

6 [2-7]

III

23 [8-31]

7 [3-25]

IV

30 [15-26]

10 [3-22]

Laboratory and cabinet

Patients with DXA initial

22 (55)

30 (100)

Laboratories*

Creatinine

NA

0.42 ± 0.15

Albumin

NA

4.35 ± 0.22

Calcium

NA

9.56 ± 0.49

Phosphorus

NA

5.15 ± 0.77

Magnesium

NA

2.11 ± 0.23

Alkaline Phosphatase

NA

258 ± 90.9

25-OHD

NA

28.2 ± 14.06

* Data indicate mean ± standard deviation.

Data expressed by range.

BP = bisphosphonate.

NA = not available.

OI = osteogenesis imperfecta.