Note: Scores typically improve by 8–12 points with 10% weight loss in clinical trials.
| Instrument | Items | Domains | MCID | ePRO Ready | Regulatory Acceptance | |------------|-------|---------|------|------------|------------------------| | | 22 | 4 | 7–9 | Yes (validated) | FDA‑qualified COA | | IWQOL‑Lite | 31 | 4 | 8–10 | Yes (paper & e‑adapted) | Widely used | | Bariatric‑Specific QoL (BQL) | 30 | 3 | 5 | Limited ePRO | Not FDA‑qualified | | SF‑36 (generic) | 36 | 8 (generic) | 3–5 | Yes | Generic, not weight‑specific | | EQ‑5D‑5L | 5 + VAS | 5 (generic) | 0.07 utility | Yes | Utility mapping only | iwqol-lite-ct
Extensive validation studies support the IWQOL-Lite-CT’s use in clinical trials: Note: Scores typically improve by 8–12 points with