LOINC long common name : Pain interference score [BPI Short Form];
LOINC description : The Brief Pain Interference (BPI) short form pain interference is typically scored
as the mean of the seven interference item scores for general activity, walking, work,
mood, enjoyment of life, relations with others, and sleep. The results are clinically
useful if more than 50% (four out of seven) of the total items have been completed.
(The Brief Pain Inventory Users Guide, 2009 Charles S. Cleeland);