Research Article

Postnatal Changes in Humerus Cortical Bone Thickness Reflect the Development of Metabolic Bone Disease in Preterm Infants

Figure 2

Chronological changes in humeral cortical bone thickness in the infants with (a) or without (b) a 20% or more decrease in cortical bone thickness between birth and 36–44 weeks of PMA (black circles, at birth; dark circles, 27-28 weeks of PMA; gray circles, 31-32 weeks of PMA; white circles, 36–44 weeks of PMA). The number of subjects of radiographic evaluation is shown in parentheses.
(a)
(b)