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Figure 1 | Arthritis Research & Therapy

Figure 1

From: Discriminant validity, responsiveness and reliability of the rheumatoid arthritis-specific Work Productivity Survey (WPS-RA)

Figure 1

Change from baseline in Work Productivity Survey – Rheumatoid Arthritis (WPS-RA) by American College of Rheumatology 20% improvement criteria (ACR20) clinical response at week 24. §P ≤ 0.001, **P < 0.01, *P ≤ 0.05 responders versus non-responders; P values were obtained using the non-parametric bootstrap-t method. Rate of interference is a score on a scale of 0 to 10 points (0 = no interference and 10 = complete interference). WPS-RA recall period is 1 month. BSL, baseline; RA, rheumatoid arthritis; WP, work productivity.

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