TABLE 5.
Bootstrap mediation results: LOCF analysis from Baseline to Week 46.
| 1 | Unbouted | IWS ‐> unbouted moderate physical activity (a) | 0.14 | 0.67 | −1.08, 1.48 |
| Moderate physical activity | Unbouted moderate physical activity ‐> percent weight change (b) | 0.00 | 0.02 | −0.03, 0.04 | |
| Direct effect of IWS ‐> percent weight change (c’) | 0.30 | 0.10 | 0.12, 0.54 | ||
| Total effect of IWS ‐> percent weight change (c) | 0.30 | 0.09 | 0.002, 0.11 | ||
| Indirect effect (a × b) | 0.00 | 0.01 | −0.03, 0.02 | ||
| Bouted MVPA | IWS ‐> bouted MVPA (a) | −0.01 | 0.00 | −0.02, 0.00 | |
| Bouted MVPA ‐> percent weight change (b) | −1.24 | 2.03 | −6.18, 2.51 | ||
| Direct effect of IWS ‐> percent weight change (c’) | 0.29 | 0.10 | 0.12, 0.52 | ||
| Total effect of IWS ‐> percent weight change (c) | 0.30 | 0.09 | 0.002, 0.11 | ||
| Indirect effect (a × b) | 0.01 | 0.02 | −0.02, 0.05 | ||
| Energy | IWS ‐> energy expenditure (a) | −17.47 | 12.09 | −42.54, 4.80 | |
| Expenditure | Energy expenditure ‐> percent weight change (b) | 0.00 | 0.00 | 0.00, 0.00 | |
| Direct effect of IWS ‐> percent weight change (c’) | 0.30 | 0.09 | 0.13, 0.51 | ||
| Total effect of IWS ‐> percent weight change (c) | 0.29 | 0.09 | 0.002, 0.10 | ||
| Indirect effect (a × b) | −0.02 | 0.02 | −0.08, 0.01 | ||
| 2 | Unbouted | IWS ‐> unbouted moderate physical activity (a) | 0.14 | 0.67 | −1.01, 1.58 |
| Moderate physical activity | Unbouted moderate physical activity ‐> odds of ≥5% weight loss (b) | 0.01 | 0.01 | −0.01, 0.02 | |
| Direct effect of IWS ‐> odds of ≥5% weight loss (c’) | −0.11 | 0.04 | −0.20, −0.05 | ||
| Indirect effect (a × b) | 0.00 | 0.01 | −0.01, 0.02 | ||
| Bouted MVPA | IWS ‐> bouted MVPA (a) | −0.01 | 0.00 | −0.02, 0.00 | |
| Bouted MVPA ‐> odds of ≥5% weight loss (b) | 0.11 | 0.74 | −1.34, 1.74 | ||
| Direct effect of IWS ‐> odds of ≥5% weight loss (c’) | −0.10 | 0.04 | −0.29, −0.04 | ||
| Indirect effect (a × b) | 0.00 | 0.01 | −0.02, 0.01 | ||
| Energy | IWS ‐> energy expenditure (a) | −17.47 | 12.22 | −42.05, 6.80 | |
| Expenditure | Energy expenditure ‐> odds of ≥5% weight loss (b) | 0.00 | 0.00 | 0.00, 0.00 | |
| Direct effect of IWS ‐> odds of ≥5% weight loss (c’) | −0.11 | 0.04 | −0.20, −0.05 | ||
| Indirect effect (a × b) | 0.00 | 0.01 | −0.01, 0.02 |
Note: Predictor: change in IWS from baseline to week 20; Mediator: change in physical activity from week 20 to 46; Outcome: percent weight loss (Model 3) or odds of ≥5% weight loss (Model 4) from baseline to week 46. This table contains unstandardised coefficients. Confidence intervals that do not contain zero indicate a significant model and are highlighted in bold.
Abbreviations: IWS, internalized weight stigma; MVPA, moderate‐to‐vigorous physical activity; WSSQ, weight self‐stigma questionnaire.