Photon absorption measurements of forearm bone density in 196 insulin-dependent patients, age 6-26 years, were compared with findings in 124 controls. Expected density, gm. Ca/cm.2 bone width (M/W), was calculated from regressions of M/W on ulnar length for white and black male and female controls. There were no significant correlations between M/W differences from expected and serum Ca, Mg, P, or alkaline phosphatase levels, estimated physical activity level, insulin dosage, or the presence of joint contracture. White females averaged 8.2 per cent (±1 S.E.M.) loss of M/W, as against white male average loss of 4.7 per cent ± 1 and black female loss of 2 per cent ± 2 (p < 0.001); the black male population was too small for separate analysis. M/W loss > 10 per cent was seen in 29 per cent of white males, 19 per cent of blacks, and 48 per cent of white females (p < 0.02). When the groups were further divided into those with duration of diabetes ≤ five years and those with duration > five years, significant reduction in M/W average loss over time was seen with white females (10.6 per cent ± 1.2 to 3.7 per cent ± 1.5, p < 0.0001). Expression of this defect in bone mineralization is controlled by race and sex acting independently of each other.
Diminution of Bone Mass in Childhood Diabetes
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Arlan L Rosenbloom, Dennis C Lezotte, F Thomas Weber, Jack Gudat, Debbie R Heller, Mary Lou Weber, Sally Klein, Barbara B Kennedy; Diminution of Bone Mass in Childhood Diabetes. Diabetes 1 November 1977; 26 (11): 1052–1055. https://doi.org/10.2337/diab.26.11.1052
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