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Table 1 Patients characteristics

From: Comparison of two bone markers with growth evolution in 74 girls with central precocious puberty

   

Patients included

Patients excluded

MWU

value

n

Mean ± SD

Min

Max

%

n

Mean ± SD

Min

Max

p

Age at onset (years)

 

74

6.79 ± 1.18

3.00

8.00

 

419

6.66 ± 1.38

0.10

8.0

0.335

≤6

18

   

24.3

     

Initial evaluation

Age (years)

 

74

7.50 ± 1.28

3.50

9.50

 

419

7.56 ± 1.47

0.75

10.58

0.479

BMI (kg/m2)

 

74

17.40 ± 1.97

14.73

23.84

 

410

17.48 ± 2.20

12.21

25.45

0.673

BMI (SDS)

 

74

0.1 ± 1.40

−2.00

4.60

 

410

1.29 ± 1.59

−2.4

6.6

0.958

≥2

7

   

9.4

     

Growth rate the year before (cm)

 

70

7.55 ± 1.57

5.00

13.00

 

374

7.80 ± 2.17

2.00

24.00

0.593

Growth rate the year before (SDS)

 

70

1.89 ± 1.80

−1.1

6.6

 

374

2.32 ± 2.38

−4.67

12.94

0.489

≥2

32

   

45.7

     

Height (cm)

 

74

130.46 ± 9.57

101

146.5

 

419

130.63 ± 11.59

68.0

155.0

0.521

Height (SDS)

 

74

2.06 ± 1.43

−1.31

6.18

 

419

2.1 ± 1.3

−2.9

5.3

0.913

Bone age (years)

 

73

8.7 ± 1.6

4

11

      

Difference between bone and chronological ages (years)

 

73

1.23 ± 1.25

−0.90

5.50

 

405

1.3 ± 1.3

−2.5

6

0.787

≥2

24

   

32.9

     

Uterus length (mm)

 

47

35.03 ± 8.02

21.00

58.00

 

223

36.19 ± 8.97

16.00

75.00

0.463

≥35

23

   

48.9

     

Basal LH concentration (IU/L)

 

65

0.67 ± 0.83

0.10

5.00

 

334

0.84 ± 1.58

0.00

20.20

0.341

Basal FSH concentration (IU/L)

 

64

2.04 ± 1.63

0.40

7.00

 

335

2.95 ± 2.09

0.20

10.00

0.001

LH peak (IU/L)

 

74

8.95 ± 10.55

0.60

46.00

 

419

12.16 ± 14.90

0.20

101.0

0.059

FSH peak (IU/L)

 

74

11.40 ± 5.96

0.80

36.50

 

419

12.84 ± 6.96

1.10

62.00

0.045

LH/FSH peak ratio

 

74

0.96 ± 1.35

0.09

7.62

 

419

0.95 ± 1.07

0.04

9.83

0.170

≥0.66

27

   

36.5

     

Estradiol (pg/mL)

 

74

13.4 ± 14.45

2.00

88.00

     

≥15

20

   

27

    

BAP (μg/L)

 

62

78.5 ± 30.3

32.1

167.2

     

CTX (pg/L)

 

69

5540 ± 6438.9

682

54,627

     

Untreated patients

  

49

   

66.2

     

Growth rate 6 months following initial evaluation (cm)

 

28

3.8 ± 1.1

2

6

     

Growth rate 6 months following initial evaluation (SDS)

 

28

2 ± 2.5

−2.25

8

     

Growth rate the year following initial evaluation (cm)

 

16

7.6 ± 1.8

4.7

11

     

Growth rate the year following initial evaluation (SDS)

 

16

2.1 ± 2.2

−1.5

6.6

     

≥2

8

   

50

    

Adult height (cm)

 

21

163.7 ± 6.4

151

178

     

Adult height (SDS)

 

21

0.1 ± 1.1

−2.2

2.6

     

Difference between target and adult heights (cm)

 

19

−1.2 ± 3.7

−7

4.5

     

≥5

0

   

0

    
  1. Values are presented as mean ± standard deviation, minimum and maximum. P-values were calculated with Mann Whitney U test
  2. BMI body mass index, SDS standard deviation score, LH luteinizing hormone, FSH follicle stimulating hormone, BAP bone alkaline phosphatase, CTX C-terminal telopeptide of type I collagen crosslinks, n number of patients analyzed, MWU Mann Whitney U test
  3. Bold data correspond to significant p values