Using radiographic absorptiometry we measured changes in phalangeal bone mineral density (BMD) in mass units/cm2 of a CAPD patient group (N = 32) during a nominal two-year span and compared the average rate of change with the normal rate due to aging. We did the same for five patient groups on hemodialysis (HD) ranging in size from N = 46 to N = 87. Average annual BMD rates of change of the CAPD group and of one HD group were not significantly different from normal aging. Theaverage BMD of each of the other four HD groups declined significantly relative to norms.
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