Table 2.

Dual-energy X-ray absorptiometry values for patients and controls

Group	Total children with osteogenesis imperfecta (n=9)	Mild osteogenesis imperfecta (n=7)	Severe osteogenesis imperfecta (n=2)	Controla (n=9)
Total bone mineral content less head (g)	800.4 [674.2 to 869.0]	800.4 [674.2 to 1,294.9]	699.0 [535.2 to 862.8]	974.9 [805.6 to 1,296.1]
Total bone mineral density less head (g/cm2)	0.656 [0.646 to 0.699]	0.656 [0.571 to 0.737]	0.657 [0.646 to 0.668]	0.687 [0.594 to 0.782]
Total bone area less head (cm2)	1,219.0 [1,128.0 to 1,345.0]	1,219.0 [1,128.0 to 1,737.0]	1,060.0 [829.0 to 1,291.0]	1,175.9 [1,121.9 to 1,356.7]
Z-score (bone mineral density less head)	−1.4 [−1.4 to −1.0]	−1.4 [−1.7 to −0.3]	−1.3 [−1.4 to −1.2]	−0.7 [−1.2 to −0.6]

Data shown as median [interquartile range]

^aControl data from previous study [10]