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Table 2 Median ages in sexual maturity stages of boys according to excess weight classification

From: Median ages at stages of sexual maturity and excess weight in school children

Stages Genitalia Pubic hair
Without excess weight With excess weight p§ Without excess weight With excess weight p§
Median (p25–p75)* Median (p25–p75)
Age (years)   Age (years)  
1 8.8 8.6 0.55 8.9 8.7 0.32
(7.8–10.2) (7.6–9.8) (7.8–10.2) (7.8–9.8)
2 10.8 10.5 0.27 11.3 10.8 0.008
(9.5–12.0) (9.3–11.7) (10.0–12.2) (9.5–11.8)
3 12.6 12.3 0.06 12.7 12.3 0.36
(11.9–13.5) (11.3–13.3) (11.9–13.4) (11.5–13.4)
4 13.7 13.3 0.01 13.8 13.3 <0.001
(12.8–14.3) (12.8–13.8) (13.2–14.4) (12.7–13.8)
5 14.0 13.7 0.2 14.2 13.9 0.09
(13.2–14.4) (12.8–14.3) (13.7–14.4) (13.2–14.2)
  1. * p25 and p75: percentiles 25 and 75, respectively.
  2. § Mann–Whitney test. Brazil, 2007.