highly significantP < 0.0001
There was no significant correlation between either of the PTH assays and 25(OH)D concentrations in HD patients, but we found a highly significant (P < 0.0001) correlation ( ρ = 0.766) between bAP levels and both PTH assays and between 25(OH)D and 1,25(OH) 2 D levels ( ρ = 0.522).