Parental Support and the Built Environment: A 4-Way Decomposition Analysis of Children’s Physical Activity
Notice bibliographique
Résumé
Context Individual, social, and built environments interact to shape physical activity (PA), with responses to environmental cues often differing by gender. Such cross-level interactions are widely acknowledged, yet rarely reported. Light physical activity (LPA) is infrequently studied, yet may be particularly sensitive to such influences. Objective To estimate the gender-specific average exposure effects of built environment (BE) features on minutes of LPA in children, exploring the potential contribution of social support (SS) as both moderator and mediator. Methods Data were from the QUALITY cohort, an ongoing investigation of the natural history of obesity in 630 Quebec families. A prospective analysis was undertaken using data collected in 2008-2010. BE features (pedestrian aids, traffic calming features, neighborhood disorder, park frequency) were measured using audits and a GIS, prior to children’s clinical visit; all other measures were collected during or shortly after their clinical visit. PA was measured using accelerometers. SS was measured using the Sallis Parental Scale. VanderWeele’s 4-way decomposition analysis method was performed on each exposure. Sex-specific models controlled for age, income, parental education, and MVPA. Results There were 204 girls and 250 boys aged 11 years on average. Boys and girls accumulated 361 (SD: 62) and 348 (SD: 58) minutes of LPA on average, respectively. Estimated total average effects of the 4 built environment features on LPA ranged from 3 to 11 minutes in boys, and -7 to -2.7 minutes in girls. In 4-way decomposition, little of the total effect was due to mediated interaction or pure mediation. SS emerged as an effect modifier of most associations between BE features and LPA. When isolating the controlled direct effect, distinct patterns emerged. In the presence of SS, all BE features were positively associated with LPA in girls, while only park frequency and traffic calming features were positively associated with LPA in boys. In contrast, in the absence of SS, apparently favourable BE features were only weakly and often negatively associated with LPA in boys and girls. Conclusions In our population, the total average effect of the BE on LPA was small, and negative in girls. Although there was little evidence of a mediating role for SS, it emerged as a strong and consistent moderator. Overall, this approach could be applied in a variety of contexts to explore mediating and moderating roles.
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Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,002 | 0,003 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,002 |
| Bibliométrie | 0,002 | 0,002 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,001 | 0,000 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,006 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».