An examination of body esteem and health outcomes in community samples of youth and youth in pediatric weight management
Bibliographic record
Abstract
Existing literature is conflicting about the association between body mass index (BMI), body image, quality of life, and disordered eating in samples of community youth, and youth in pediatric weight management programs.This thesis explored these associations through two studies.Study 1 was a meta-analysis examining the association between BMI and health outcomes and Study 2 was a longitudinal study of the bidirectional associations between these variables in a sample of youth in a weight management program.Meta-analytic results indicated that BMI was significantly associated with body image (r = -0.41;N = 57; p <.001), disordered eating (r = 0.14; N = 46; p <.001), and quality of life (r = -0.22;N = 21; p <.001).However, there were significant sex and construct differences, such that for most body image subgroups the association between BMI and body image was significantly larger for female samples.Additionally, studies that used figure rating scales compared to Likert assessments of body image had stronger associations with BMI and no sex differences.In Study 2, 209 youth (111 female; ages 4-18) were included in a retrospective chart review from a pediatric weight management program.Latent growth modelling was used to examine univariate growth trajectories of each variable and the bidirectional associations between body esteem, disordered eating, quality of life, and BMI over time.It was hypothesized that: 1) higher initial body esteem would be associated with lower disordered eating and higher quality of life at baseline, 2) higher initial body esteem would be associated with more favourable changes in disordered eating and quality of life over time, and 3) increases in body esteem would be associated with decreases in disordered eating and increases in quality of life over time.Results indicated that baseline body esteem was associated with baseline emotional BODY ESTEEM AND OBESITY iii eating and quality of life, however body esteem was relatively stable over time and was not associated with changes in quality of life, or disordered eating over time.These results have implications for our understanding of the stability of body esteem over time, body image measurement and terminology, and its role in pediatric weight management programs.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.005 | 0.009 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".