Table 2

Criteria adopted to judge the maintenance of target values over time

Data presence* %

Data permanence‡ %

Class 1 from 1 to 4 months of dialysis

Class 2 from 5 to 8 months of dialysis

Class 3 from 9 to 12 months of dialysis


Group 3 "entire permanence"

>= 99%

>= 90%

>= 80%


Group 2 "partial permanence"

>= 85% <90%

>= 75% <80%


Group 1 "limited permanence"

>= 80% <85%

>= 70% <75%


Group -1 "insufficient permanence"

<99%

< 80%

<70%


Percentages of data presence and data permanence within the set limits per parameter in relation to the length of the dialysis treatment

*total number of determinations expected for each considered parameter

‡value of each determination vs. established ranges for each parameter.

Soffritti et al. BMC Nephrology 2009 10:33   doi:10.1186/1471-2369-10-33

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