Fig. 5
From: Insight into human pubertal growth by applying the QEPS growth model
Scatterplot showing the relationship between the duration of pubertal growth and AgeP50. Left panel: Age from 5% of the pubertal growth (AgeP5) to age at 95% of the pubertal growth (AgeP95) for girls (red circles) and boys (blue crosses) in the study population, represents one estimate for duration of pubertal growth and is related to the timing of AgeP50. For girls; AgeP5 to AgeP95 = 5.030–0.0184 x AgeP50, adjusted r2 = 0.0068. For boys; AgeP5 to AgeP95 = 4.246 + 0.0052 xAgeP50, adjusted r2 = −0.0003. Right panel: Age from the minimum height velocity before pubertal growth spurt (AgeT ONSET ) to the age where the height velocity has decreased to 1 cm/year (AgeT END ) girls (red circles) and boys (blue crosses) represents one estimate for duration of pubertal growth and is related to the timing of AgeP50. For girls; AgeT ONSET–END  = 7.544–0.147 x AgeP50, adjusted r2 = 0.081. For boys; AgeT ONSET–END  = 6.789–0.0616xAgeP50, adjusted r2 = 0.0244