194: Turning from Child to Teen: Early Initiation and Emergence of Active Use of Tobacco and Alcohol
Notice bibliographique
Résumé
Previous studies have well documented the uptake of tobacco and alcohol in adolescence and young adulthood. However, little is known on their early initiation and use even if these are associated to several adverse outcomes. To document early initiation and use of tobacco and alcohol, and to characterize the transition from initiation to use of these substances throughout the passage from childhood to the teenage years. As part of the ongoing Québec Longitudinal Study of Child Development (QLSCD), self-reported data on substance initiation during the past year (yes/no) were collected from a national representative sample (n=1,558) of young Quebecers (48.6% males) at 10, 12 and 13 years of age (between 2008 and 2011) while data on active use of tobacco and alcohol during the last 30 days (yes/no), and binge drinking in the past year (yes/no) were collected at ages 12 and 13. The between-year movement of consumption status was described using Markov modeling with survey-specific sample weight. Throughout the ages, an increase in substance initiation and use were obtained. Weighted frequencies were of 1.4%, 6.5% and 16.6% for tobacco, and of 1.1%, 9.8% and 25.7% for alcohol initiation at ages 10, 12 and 13 respectively. At ages 12 and 13, 1.0% and 4.5% reported to be smokers, while 0.9% and 4.2% were alcohol users, and 2.9% and 10.2% experienced binge drinking. None of 10-year initiated youths were users at age 12, but 24.0% and 15.7% of 12-year initiated youths respectively became tobacco and alcohol users at age 13. In addition, 43.6% and 59.5% of users of tobacco and alcohol at age 12 were still users one year later and 52.5% of youths reproduced binge drinking from ages 12 to 13. A number of participants from our cohort reported to be initiated to tobacco or alcohol as early as at the end of their childhood even though few already became users or showed risky behaviors such as binge drinking. Taking into consideration that for several kids early initiation rapidly develops into sustained use, and because approximately half of them maintain their habits later on, the turning from child to teen represents a strategic window to start tackling tobacco and alcohol use among youths; much younger that one would expect.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
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 | 0,001 | 0,004 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,001 |
| 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 | 0,001 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,005 | 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 ».