Timing of Puberty and Late Pubertal Height in Saudi Schoolboys: Riyadh Puberty Study II

Table 4

Mean age of pubertal maturation and mean pubertal height gain (in cm) in pubertal studies of different populations.

Variables of interest	Our study	Biro, et al. (US) [9]	Brix, et al. (Netherland) [37]	Bundak, et al. (Turkey) [38]	Jaruratanasi-rikul, et al. (Thailand) [39]	Pantsiotou, et al. (Greece) [40]	Yoshii and Tanaka (Japan) [41]	Tanner, et al. (UK) [42]
Age at G2 (Years)	11.7	12.18	11.1	11.6	10.6	10.3	12.38	11.5
Height at G2 (cm)	144.7	149.8	155	146.1	138 (2012) 139 (1994)	143.4	143.8	144.5
Age at G5 (Years)	16.0	15.19	15.2	16.5	16.2	17.1	17.63	16.0
Height at G5 (cm)	167.8	173.3	184	172.5	170.3 (2012) 167.0 (1994)	175.9	170.7	173.7
Duration of puberty (years)	4.3	3.01	4.1	4.9	5.6	6.8	5.25	4.5
Pubertal height gain	23.5	23.5	29	26.4	28.5–31.8	32.5	26.98	28.2

Average values were taken from 3 groups (GR1-3) in the study. Tanner report, 1966, is of a standard study in history on growth and tempo of puberty. It is old and hence, secular trends should be considered in comparisons. Data extracted from a figure in the article though was not exactly reported in these numbers in the article. G: genitalia stage.