School meals and snacks in Canadian primary schools: assessing diet quality among schoolchildren
Notice bibliographique
Résumé
Abstract Background School food programs (SFPs) are an effective strategy for improving children's diet. Canada does not have a national SFP but rather a patchwork of school food offerings, and their impact on children's diet is unknown. This study assessed the diet quality of Canadian primary schoolchildren who accessed meals and snacks provided by school. Methods We surveyed 2,366 students aged 9-14 years (49% girls) from 32 schools in socioeconomically disadvantaged communities in two Canadian provinces. Using a 24-hour diet recall, students recorded foods and beverages consumed for meals (breakfast, lunch) and snacks (morning, afternoon) during school hours. Students also indicated whether the meal or snack was provided by their school (yes/no). Diet quality was assessed using the Diet Quality Index - International (DQI-I) score (ranging from 0 to 100, with higher scores indicating higher diet quality) and its components (adequacy, variety, balance, moderation). Multivariable linear regression models were used to examine the association of school-provided meals and snacks with diet quality. Results Only 293 (12%) students consumed at least one school-provided meal or snack during school hours. These students most often consumed school-provided morning snack (43%) and least often breakfast (18%). Consuming at least one meal or snack provided by school was associated with a higher overall DQI-I score (β = 1.8, 95% CI = 0.7 to 3.0), as well as higher component scores for variety (β = 0.5, 95% CI = 0.1 to 0.9) and adequacy (β = 0.9, 95% CI = 0.4 to 1.5). Consuming snacks provided by school was associated with higher overall DQI-I scores (morning snack β = 2.2, 95% CI = 0.5 to 3.8; afternoon snack β = 3.1, 95% CI = 1.1 to 5.1); no significant associations were found for breakfast or lunch provided by school. Conclusions School meals and snacks, though consumed by only one in eight primary schoolchildren, may contribute to better diet quality, with the greatest impact observed for snacks. Key messages • The availability of meals and snacks provided by schools in Canada was low, with only one in eight primary schoolchildren having consumed school meals or snacks. • Diet quality was higher among students who consumed school meals or snacks than those who did not, with the greatest benefit observed for snacks.
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Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,041 | 0,009 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,001 | 0,000 |
| Communication savante | 0,001 | 0,001 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 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; les deux têtes enseignantes s’accordent sur ce qui est montré ici.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».