Lupus Impact Tracker (LIT) is a 10-question survey.
It was developed to help patients with lupus communicate with their lupus doctors. Since, it is brief, it can be easily and quickly completed in busy physician offices, without burdening them. It can be used for tracking the patient's disease — by patients themselves, by their physicians, or both. It can also be used in tracking response to treatment, in research and in clinical trials.
This tool was derived from its more comprehensive, longer parent survey, LupusPRO. Using LIT is very easy, and does not require much calculations. LIT gives one total LIT score. This is obtained by adding your responses, and then using the conversion table provided in the form to get the total score. Patients find it easy to use and score. Physicians find it useful as well.
LIT has been developed using sound techniques, and has excellent measurement properties. It is validated in English within the United States, Canada and Australia. It has also been validated in French, Spanish, German, Italian and Swedish.
The tool had good measurement equivalence. It has also been shown to be responsive to changes in disease as assessed by patients, or as assessed by disease activity or flares by their lupus doctors. This is the only patient reported tool thus far that has also been shown to be responsive to changes in SLE Responder Index.