Table 2 Correlation values regarding BMI Z-score at age at thelarche and menarche, the Δ between birth weight Z-score and BMI Z-score at thelarche and menarche and the Δ of BMI Z-score between thelarche and menarche

BMI Z-score at thelarche

Age at thelarche

0.34

 < 0.0001

BMI Z-score at menarche

Age at menarche

0.46

 < 0.0001

Δ BW vs. BMI Z-scores at thelarche^a

Age at thelarche

0.27

 < 0.0001

Δ BW vs. BMI Z-scores at menarche^a

Age at menarche

0.38

 < 0.0001

Δ BW vs. BMI Z-scores Δ at menarche^a

Tempo of puberty

0.20

 < 0.0001

Δ BMI vs. BMI Z-scores^b

Tempo of puberty

0.13

 < 0.05

Δ BMI vs. BMI Z-scores^a

Final height Z-score

0.13

 < 0.05