The skeletal maturity of Australian children aged 10–13 years in 2016

Skeletal maturity can be used as a biological indicator of the tempo growth in children and adolescents. We present description skeletal from cohort white Australian describe variation based on child age. Participants (n = 71; age 10.5-13.9 years) were recruited 'Healthy, Active Preschool & Primary Years (HAPPY)' study. Left hand-wrist radiographs to determine using Tanner-Whitehouse III (TW3) RUS technique. In boys, mean offset (bone - chronological age) was -0.12 ± 0.19 years 57.9% had delayed compared Among those with maturity, average delay 0.99 years (range 0.02-2.54 years). girls, advanced, average, by 0.32 ± 0.20 years. 39.4% girls 0.48 years (range: 0.01-2.28). Four sample exhibited greater than 2 years. context secular trends towards advanced observed globally, maturation this white, economically privileged are surprising warrant further exploration.