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Table 3 Growth status of menstruating (post-) and non-menstruating (pre-) adolescent girls

From: Correlation of body mass index levels with menarche in adolescent girls in Shaanxi, China: a cross sectional study

Age

n

Height (cm), Mean ± SD

Weight (kg), Mean ± SD

BMI (kg/m2), Mean ± SD

BMI Z-scores, Mean ± SD

Pre-

Post-

Pre-

Post-

Pre-

Post-

Pre-

Post-

Pre-

Post-

<12

5

0

141.8 ± 4.14

 

30.4 ± 2.85

 

15.1 ± 0.60

 

−1.35 ± 0.40

 

12–12.99

9

6

147.4 ± 6.31

154.1 ± 4.02*

35.3 ± 4.25

41.2 ± 3.51*

16.2 ± 1.70

17.3 ± 1.00

−1.12 ± 0.84

−0.51 ± 0.43

13–13.99

38

52

150.2 ± 6.90

155.1 ± 4.92**

38.4 ± 9.24

45.1 ± 5.84**

17.0 ± 3.69

18.7 ± 2.21*

−1.15 ± 1.06

−0.34 ± 0.84**

14–14.99

29

132

150.8 ± 7.73

155.9 ± 5.76**

38.4 ± 8.91

47.0 ± 6.46**

16.8 ± 2.85

19.3 ± 2.27*

−1.29 ± 1.10

−0.23 ± 0.77**

15–15.99

7

138

151.5 ± 7.35

157.9 ± 5.26**

43.0 ± 6.20

49.2 ± 6.51*

18.7 ± 1.88

19.7 ± 2.21

−0.68 ± 1.03

−0.29 ± 0.84

16–16.99

0

85

 

157.7 ± 5.47

 

49.4 ± 5.58

 

19.9 ± 2.11

 

−0.39 ± 0.80

17–17.99

0

18

 

155.3 ± 4.09

 

49.6 ± 5.87

 

20.6 ± 2.45

 

−0.30 ± 0.92

18–19.99

0

6

 

158.4 ± 2.96

 

51.0 ± 7.54

 

20.3 ± 3.24

 

−0.67 ± 1.40

  1. *P < 0.05, **P < 0.01