Table 2. Comparison between the prepubertal response group and the pubertal response group.

A	GnRH stimulation test
	Prepubertal	Pubertal	p value
Cases within 1 yr	8	3	<0.01
Cases after 1 yr	0	10
Total	8	13
B	GnRH stimulation test
	Prepubertal	Pubertal	p value
CA at breast development (yr)	6.9 ± 0.6	6.9 ± 0.7	NS
BA/CA ratio	1.19 ± 0.12	1.25 ± 0.08	NS
Height (SD)	+ 0.39 ± 1.12	+ 0.95 ± 0.90	NS
Obesity (%)	+ 9.2 ± 9.7	+ 18.3 ± 19.4	NS
Gestational age (w)	38.4 ± 2.1	38.3 ± 2.8	NS
Birth body weight (g)	2,823 ± 709	2,726 ± 752	NS
Target height (cm)	154.0 ± 5.2	155.5 ±.4	NS
Mother’s menarche (yr)	11.6 ± 1.3	11.5 ± 1.0	NS
IGF-I (ng/ml)	214 ± 64	418 ± 148	p<0.01
Estrogen (pg/ml)	9 ± 4	22 ± 13	p<0.01
DHEA-S (µg/dl)	37 ± 37	56 ± 25	NS

Data are shown as means ± SD. A: Duration from breast development, B: Clinical characteristics and laboratory data.