In Ervin et al, 1 the published article lists the incorrect finalised number of items for the Impact of Weight on Daily Activities Questionnaire (IWDAQ). The final instrument includes 18 items (not 19 items as stated), because item 8 (Leisure activities or hobbies) was removed from the preliminary version of IWDAQ after Round 1.
The number 19 was incorrectly used in the last sentence of the abstract. The correct sentence should read:
“By allowing individuals participating in trials to identify and monitor changes in the activities they most want to see improve with weight loss, the 18‐item IWDAQ has the potential to detect the benefits of weight‐loss treatment that individuals with obesity value most.”
The number 19 was incorrectly used in the last bullet of “What this study adds”. The correct bullet should read:
“The 18‐item IWDAQ uses a novel, adaptive questionnaire design: clinical trial participants choose the three IWDAQ activities they would most like to improve with weight loss and rate their limitation in each activity at baseline, thus capturing the benefits of weight‐loss treatment that individuals with obesity value most.”
The following changes are needed in Table 4:
TABLE 4.
Frequency of item endorsement (response ≥ a little) and frequency of inclusion among the top three activities (US and UK combined)
| BMI class 1 b (n = 16) | BMI class 2 b (n = 15) | BMI class 3 b (n = 15) | Total sample (N = 46) | |||||
|---|---|---|---|---|---|---|---|---|
| Concept a | Endorsed c | Top 3 | Endorsed c | Top 3 | Endorsed c | Top 3 | Endorsed, n (%) c | Top 3 (n) |
| 1. Bathing or showering | 3 | 2 | 2 | 1 | 4 | 1 | 9 (19.6) | 4 |
| 2. Dressing or undressing | 8 | 1 | 6 | 3 | 6 | 1 | 20 (43.4) | 5 |
| 3. Getting up from a chair | 4 | ‐ | 3 | – | 8 | – | 15 (32.6) | – |
| 4. Getting up from the floor or ground | 7 | 1 | 10 | 3 | 13 | 6 | 30 (65.2) | 10 |
| 5. Sleeping | 7 | 4 | 2 | – | 8 | 2 | 17 (37.0) | 6 |
| 6. Moving around the home | 2 | – | 3 | 1 | 7 | 1 | 12 (26.1) | 2 |
| 7. Walking short distances | 3 | – | 1 | – | 9 | 1 | 13 (28.3) | 1 |
| 8. Leisure activities or hobbies d | 3 | – | 2 | 1 | 2 | 1 | 7 (15.2) | 2 |
| 9. Household tasks | 4 | – | 5 | 3 | 8 | 4 | 17 (37.0) | 7 |
| 10. Shopping | – | – | – | ‐ | 8 | – | 8 (17.4) | – |
| 11. Getting to places d | 1 | – | – | – | – | – | 1 (2.2) | – |
| 12. Playing with or taking care of children | 12 | 8 | 11 | 8 | 8 | 6 | 31 (67.4) | 22 |
| 13. Socializing with friends or family | 3 | 1 | 3 | 1 | 6 | – | 12 (26.1) | 2 |
| 14. Socializing with people you do not know well | 7 | 2 | 5 | 2 | 10 | 3 | 22 (47.8) | 7 |
| 15. Dating or developing romantic relationships | 1 | – | 3 | 2 | 2 | – | 6 (13.0) | 2 |
| 16. Sexual activity | 11 | 6 | 8 | 5 | 8 | 1 | 27 (58.7) | 12 |
| 17. Outdoor tasks | 9 | 3 | 4 | 2 | 8 | 3 | 21 (45.7) | 8 |
| 18. Physical activities at work | 9 | 5 | 11 | 5 | 14 | 4 | 34 (73.9) | 14 |
| 19. Moderate exercise | 12 | 7 | 12 | 1 | 15 | 6 | 39 (84.8) | 14 |
| 20. Strenuous exercise | 14 | 8 | 13 | 7 | 13 | 5 | 40 (87.0) | 20 |
Abbreviations: BMI, body mass index; UK, United Kingdom; US, United States.
Item stems have been truncated to facilitate presentation.
Class 1 = BMI between 30.00 and 34.99; Class 2 = BMI between 35.00 and 39.99, inclusive; Class 3 = BMI 40 and higher.
Endorsed = responded ≥ a little when responding to the item.
Items 8 and 11 were removed after round 1.
Footnote “d” should be in item number 8 and the text for footnote “d” should be updated from “dItem 11 was removed after round 1.” to “dItems 8 and 11 were removed after round 1.” The corrected table is shown below.
The authors apologize for these errors.
REFERENCE
- 1. Ervin CM, Whalley D, von Huth Smith L, Crawford R, Dine J, Fehnel SE. Development of the impact of weight on daily activities questionnaire: A patient‐reported outcome measure. Clin Obes 2020;10:e12387. https://doi.org/ 10.1111/cob.12387 [DOI] [PMC free article] [PubMed] [Google Scholar]