Time Trends in Trajectories of Forearm Mineral Content and Bone Size during Childhood-Results from Cross-Sectional Measurements with the Same Apparatus Four Decades Apart.

The forearm periosteal diameter trajectory was steeper in children measured in 2017–2018 compared to 1979–1981 [1.1%/year (0.3%, 2.0%)]; the forearm medullary diameter trajectory may have been steeper, but differences did not reach statistical significance [1.6%/year (−0.1%, 3.3%)] (Table 1 , Fig. 4 ).

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