Table II.
Sex incidence of idiopathic and neurogenic precocious puberty in different studies
| Investigator |
ICPP
|
NCPP
|
||||
|---|---|---|---|---|---|---|
| Male | Female | Male | Female | |||
| Thamdrup (1961) (29) | 4 | 34 | 7 | 11 | 3: 1 | 1: 0.57 |
| Wklkins (1965) (30) | 13 | 67 | 10 | 5 | 13: 4 | 1.3: 1 |
| Sigurjonsdottir & Hayle (1968) (31) | 8 | 54 | 16 | 16 | 3: 1 | 1: 2 |
| University of California (1981) (32) | 13 | 121 | 26 | 45 | 7: 2 | 1: 2 |
| Bridges (1994) (24) | 0 | 85 | 3 | 6 | 14: 1 | 0 |
| Cisternino (2000) a (33) | - | 226 | - | 56 | 4: 1 | - |
| De Sanctis(2000) b (28) | 27 | - | 18 | - | - | 1: 1.5 |
| Chematilly (2001) (25) | 7 | 186 | 19 | 44 | 4: 2 | 0.37: 1 |
| Bajpai (2002) (26) | 8 | 61 | 10 | 16 | 8: 3 | 1: 0.8 |
| Ghaemi (2002) a (16) | - | 34 | - | 4 | 8.5: 1 | - |
| Lee (2009) (34) | - | 427 | - | 17 | 25: 1 | - |
| Rohani (2010) | 1 | 20 | 2 | 1 | 20: 1 | 1: 2 |
ICPP: Idiopathic Central precocious Puberty.
NCPP: Neurogenic Central precocious puberty.
a
. Study only in female.
b
. Study only in male.
c
. ICPP to NCPP ratio in female.
d
. ICPP to NCPP ratio in male.