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. 2019 Dec 4;14:284. doi: 10.1186/s13023-019-1254-7

Table 4.

Reliability assessment: Percentage of ratings with a deviation of + 1 or 0 or − 1 of one same item between test and retest rounds (Deviation = [−1; + 1])

Calculated for each item PNQ Fabry WHOQOL-BREF
% Minimal of deviation [−1; + 1] observed for one item 78.9% 73.7%
% Maximal of deviation [−1; + 1] observed for one item 98.7% 97.4%
Mean of % deviation [−1; + 1] observed for all items 90.9% 90.5%