Impact du milieu socio-économique sur les caractéristiques anthropométriques et le VO2max chez des enfants et des adolescents québécois
Bibliographic record
Abstract
La pauvreté, la sédentarité et l’obésité chez les jeunes sont des enjeux de santé publique sur lesquels plusieurs organismes mondiaux et provinciaux, tels que l’Organisation mondiale de la Santé et l’Institut national de la santé publique du Québec, apportent depuis plusieurs décennies des solutions concrètes permettant d’en diminuer les impacts négatifs (INSPQ, 2006 & OMS, 2020). Malgré de nombreuses études (Springer et al., 2015 ; Bowser et al., 2016 ; Van Dyke et al., 2018) qui ont examiné les phénomènes de l’inactivité physique et de l’obésité chez les jeunes, toutes les relations existantes entre le milieu socio-économique et ces derniers n’ont pas encore été clairement démontrées. La littérature actuelle ne présente que peu, voir aucune donnée permettant de lier ces éléments dans la réalité culturelle d’un pays comme le Canada, et encore moins au niveau du Québec. Ainsi, ce projet a pour objectifs d’étudier les liens existants entre le statut socio-économique, les caractéristiques anthropométriques, le VO2max et la perception de l’image corporelle chez de jeunes Québécois âgés de 6 à 18 ans issus de divers milieux socioéconomiques. Nous avons pour cela utilisé une base de données existantes de 3734 participants provenant de différents milieux scolaires québécois (primaire et secondaire). Celle-ci comprend des mesures anthropométriques standardisées (poids, taille, âge, sexe et indice de masse corporelle), de conditionnement physique incluant le nombre de paliers complétés au test de course navette de 20 mètres (Léger, 1984) et le VO2max estimé, ainsi que les résultats d’un questionnaire sur l’image corporelle. Ces covariables ont été soumises à des analyses descriptives, des tests t non appariés et appariés, des analyses discriminantes ainsi que des régressions logistiques binomiales, afin de mettre en évidences leur relation avec la variable dépendante, soit le statut socio-économique. Les résultats obtenus corroborent l’impact du statut socio-économique sur l’ensemble des variables, et plus particulièrement chez les filles, soutenant l’importance de l’implantation d’infrastructures et de programmes sportifs chez les jeunes au sein de la population québécoise. Poverty, sedentary lifestyle and obesity among young people are public health issues on which several global and provincial organizations, such as the World Health Organization and the Institut national de la santé publique du Québec, have been providing concrete solutions for several decades to reduce their negative impacts (INSPQ, 2006 & OMS, 2020). Despite numerous studies (Springer et al., 2015 ; Bowser et al., 2016 ; Van Dyke et al., 2018) that have examined the phenomena of physical inactivity and obesity in young people, all the existing relationships between the socio-economic background and the latter have not yet been clearly demonstrated. The current literature presents little, or no data allowing these elements to be linked to the cultural reality of a country like Canada, and even less in Quebec. Thus, the objectives of the present project are to study the existing links between socio-economic status, anthropometric characteristics, VO2max and the perception of body image among young Quebecers aged 6 to 18 from various socioeconomic backgrounds. To do this, we used an existing database of 3,734 participants from different Quebec schools (elementary and secondary). This includes standardized anthropometric measurements (weight, height, age, sex and body mass index), physical conditioning including the number of stages completed in the 20-meter shuttle run test (Léger, 1984) and the estimated VO2max, as well as the results of a body image questionnaire. These covariates were subjected to descriptive analysis, unpaired and paired t tests, discriminant analysis as well as binomial logistic regressions, in order to demonstrate their relationship with the dependent variable, the socioeconomic status. The results obtained corroborate the impact of socio-economic status on all the variables, and more particularly among girls, supporting the importance of the establishment of sports infrastructures and programs among young people within the Quebec population.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".