PT  - JOURNAL ARTICLE
AU  - POON, JIAT LING
AU  - MARSHALL, CHRIS
AU  - JOHNSON, CHLOE
AU  - PEGRAM, HANNAH
AU  - HUNTER, MAILE
AU  - KAN, HONGJUN
AU  - AHMAD, NADIA
TI  - 2024-P: A Qualitative Study in Obesity to Explore Clinically Meaningful Change on Patient-Reported Outcome (PRO) Measures
AID  - 10.2337/db20-2024-P
DP  - 2020 Jun 01
TA  - Diabetes
PG  - 2024-P
VI  - 69
IP  - Supplement 1
4099  - http://diabetes.diabetesjournals.org/content/69/Supplement_1/2024-P.short
4100  - http://diabetes.diabetesjournals.org/content/69/Supplement_1/2024-P.full
SO  - Diabetes2020 Jun 01; 69
AB  - Background: Obesity is a chronic disease with significant impacts on health-related quality of life (HRQoL) specifically physical functioning (PF), which is increasingly assessed using PRO measures in clinical trials. A review of existing literature suggested that further qualitative research was required to establish patient-perceived clinically important change (CIC) thresholds for two PRO measures used in obesity studies: the acute 36-item Short Form Health Survey (SF-36v2) and Impact of Weight on Quality of Life-Lite-Clinical Trials Version (IWQOL-Lite-CT).Objective: To explore the level of change on the SF-36v2 (acute) and IWQOL-Lite-CT that individuals living with obesity consider to be meaningful, noticeable and indicative of treatment success.Methods: Semi-structured interviews were conducted in the U.S. with adults who have overweight or obesity (Body Mass Index [BMI] ≥ 27 kg/m2). Open-ended concept elicitation (CE) questions allowed participants to discuss the amount of body weight loss needed to have a noticeable improvement on PF. Cognitive tasks were later used during cognitive debriefing (CD) to explore what participants considered a CIC on each PRO measure.Results: A total of 33 participants were interviewed (mean BMI: 37.6 kg/m2 [27.4 to 56.6 kg/m2] mean age: 45 years [19 to 81 years]). In CE, participants identified 5-10% weight loss as the threshold for having a noticeable improvement on PF and contextualized meaningful weight loss by using real-life examples (e.g., climbing stairs without becoming breathless). In CD, the majority of participants considered a 1-point change at the item level to be indicative of meaningful improvement on both PRO measures.Conclusions: The combined CE and CD approach facilitated better understanding of meaningful change by participants, providing evidence that a 1-point change, the smallest detectable change on both the SF-36v2 (acute) and IWQOL-Lite-CT, is a CIC in people with overweight or obesity.Disclosure J. Poon: Employee; Self; Eli Lilly and Company. C. Marshall: Other Relationship; Self; Eli Lilly and Company. C. Johnson: Other Relationship; Self; Eli Lilly and Company. H. Pegram: Other Relationship; Self; Eli Lilly and Company. M. Hunter: Other Relationship; Self; DRG Abacus. H. Kan: Employee; Self; Eli Lilly and Company. N. Ahmad: Employee; Self; Eli Lilly and Company.