I alle undersøgelserne var den vigtigste målestok for virkningen den andel af patienter, der responderede på behandlingen, jf. de definerede sygdomsspecifikke kriterier (American College of Rheumatologys responsrater for rheumatoid arthritis og responskriterier ved behandling af arthritis psoriatica).
In all of the studies, the main measure of effectiveness was the proportion of the patients who responded to treatment, as defined by disease-specific criteria (American College of Rheumatology response rates for rheumatoid arthritis, and the Psoriatic Arthritis treatment Response Criteria for psoriatic arthritis).