The Impact of Weight on Quality of Life-Lite (IWQOL-Lite) is a copyrighted, validated self-report measure of obesity-specific quality of life developed by Ronette “Ronnie” L. Kolotkin, Ph.D., obesity consultant, owner of Quality of Life Consulting, PLLC and a consulting professor at Duke University.
The IWQOL-Lite, developed using rigorous methods, demonstrates strong psychometric properties and is linguistically validated for ≥80 languages. Numerous research studies on persons with obesity, as well as clinical practices, use the IWQOL-Lite to assess patient-reported quality of life. The breadth of knowledge gained since its development in 2001 continues to be of value in clinical research and clinical practice.
An alternative version of the IWQOL-Lite (IWQOL-Lite-Clinical Trials, or IWQOL-Lite-CT) was developed to meet the developmental rigor required by the Food and Drug Administration (FDA) to support product labeling. The IWQOL-Lite-CT consists of 20 items optimized for use in the adult patient population typically targeted for obesity clinical trials, both with and without type 2 diabetes. It is anticipated that the final measure will be qualified by the FDA for use in clinical trials of new weight-loss medications to support product labeling claims.
If you would like to license this instrument, please contact our exclusive licensee Pattern Health who can offer you a digital platform to suit your needs or a simple pdf version. Click here to go directly to the request form.
The IWQOL-Lite and the IWQOL-Lite-CT are copyright Duke University. Pattern Health is the exclusive authorized distributor of the IWQOL-Lite and the IWQOL-Lite-CT.