Development and Validation of the Lupus Impact Tracker: A Patient‐Completed Tool for Clinical Practice to Assess and Monitor the Impact of Systemic Lupus Erythematosus

Objective To derive and validate a brief patient‐completed instrument, the Lupus Impact Tracker (LIT), to assess and monitor the impact of systemic lupus erythematosus (SLE). Methods Items for the LIT were selected from the LupusPRO, a validated patient‐reported outcomes measure, using 3 approaches:...

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