Physical examination and bone age (BA) assessment
Height was measured to the nearest of 0.1 cm using a stadiometer. Body
weight was measured by a calibrated electronic scale to the nearest of
0.1 kg. Participants’ height and weight z-scores were calculated using
the Thai standard growth chart. The BMI percentile was calculated using
the WHO standard reference 2007.18 Tanner stage was
rated by a pediatric endocrinologist (P.W.) or a trained physician
(A.R.). Bone age (BA) was rated using the Greulich and Pyle method by
P.W.