The Patient-Reported Outcomes Thermometer–5-Item Scale (5T-PROs): Validation of a New Tool for the Quick Assessment of Overall Health Status in Painful Rheumatic Diseases

Figure 4

Bland and Altman plot of repeatability with the differences in the Patient-Reported Outcomes Thermometer–5-item scale (5T-PROs). Subscales values ((a) pain; (b) physical function; (c) fatigue; (d) depression; (e) general health status) plotted against average values for the 434 randomly selected patients (189 with rheumatoid arthritis, 67 with psoriatic arthritis, 45 with axial spondyloarthritis, and 133 with fibromyalgia) who completed the 5T-PROs twice with a time interval of 7 days. Ninety-five percent of the differences against the means were less than two standard deviations (SD; dotted lines).

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