Table 4.

Published Mean Ages (years) of Attaining Male Pubertal Onset

Study/Authors	Study Type	Birth Year(s)	Span of Study	Country	Subjects	Age Range	G2+	P2+
Russian Children’s Study	L	1994–1997	2003/2005–2013	Russia	350 white	8–17	9.5	12.0
Susman et al. (2010)	L	1991	2000–2006	US	364 white	9.5–15.5	10.4	11.5
Papadimitriou et al. (2011)	CS	1991–2001	2007–2009	Greece	932 white	8–16	12.3	11.6
Herman-Giddens et al. (2012)	CS	1989–2004	2005–2010	US	2070 white	6–16	10.1	11.5
Sorensen et al. (2010)	CS/L	1986–2002	2006–2008	Denmark	704 white	5.8–19.8	11.59	12.38
Facchini et al. (2008)	CS	1984–1997	2002–2004	Kazakhstan	588 white	7–18	9.7*	12.5*
Castellino et al. (2005)	CS	1985–1995	1998–2001	Italy	1858 white	6–13	11.1	11.3
Juul et al. (2006)	CS	1972–1987	1991–1993	Denmark	826 white	6–19	11.8	11.9
Sorensen et al. (2010)	CS	1971–1987	1991–1993	Denmark	824 white	5.8–19.8	11.83	11.89
Herman-Giddens et al. (2001)	CS	1969–1986	1988–1994	US	536 white	8–19	10.1*	12.0*
Sun et al. (2002)	CS	1969–1986	1988–1994	US	537 white	8–19	10.0*	12.0*
Roche et al. (1995)	L	1969–1983	1985–1993	US	78 white	9.5–16	11.3	11.3
Willers et al. (1996)	CS	1967–1978	1984–1986	Germany	8685 white	8–17	10.8*	11.5*
Mul et al. (2001)	CS	1944–1989	1965–1997	Netherlands	4019 white	8–21	11.5*	12.0*

^*Reported ages are median

L: Longitudinal; CS: Cross-sectional

Sorted by Approximate Birth Year(s)