RESULTS	Patients of the sevelamer group with a high turnover at baseline had an increase in bone resorption ( eroded surface , ES/BS = 9.0 + / - 5.9 vs. 13.1 + / - 9.5 % , p = 0.05 ) , whereas patients of both groups with low turnover at baseline had an improvement in bone formation rate ( BFR/BS = 0.015 + / - 0.016 vs. 0.062 + / - 0.078 , p = 0.003 for calcium and 0.017 + / - 0.016 vs. 0.071 + / - 0.084 microm ( 3 ) / microm ( 2 ) / day , p = 0.010 for sevelamer ) .\