Iwqol-lite-ct -

| Interpretation Band (Total) | QoL Level | |-----------------------------|-----------| | 81–100 | Excellent – minimal weight‑related impact | | 61–80 | Good – mild impact | | 41–60 | Moderate – noticeable impact | | 21–40 | Poor – substantial impact | | 0–20 | Very Poor – severe impairment |

The tool consists of that patients answer based on their experiences over a specific recall period (often the past week). These items are organized into two primary domains:

The measure consists of 20 items divided into two primary domains:

Research indicates that the measure is highly sensitive to changes in weight, with responder thresholds for "meaningful change" typically ranging between 13.5 and 16.6 points . Clinical and Regulatory Use

All items use a :

| Domain | Number of Items | Example Item | |--------|----------------|----------------| | | 9 | “I have difficulty bending over because of my weight.” | | Psychosocial | 11 | “I feel ashamed of my weight.” |

The (Impact of Weight on Quality of Life – Lite – Clinical‑Trial version) is a concise, psychometrically‑validated patient‑reported outcome (PRO) instrument that quantifies the health‑related quality of life (HR‑QoL) impact of excess body weight. It is the shortened, trial‑focused adaptation of the original IWQOL‑Lite questionnaire, designed for use in interventional studies, registries, and routine clinical practice where brevity, electronic administration, and robust measurement properties are required.