School health promotion and use of drugs among students in Southern Brazil

Individual and Contextual Characteristics Associated With Alcohol Use Among Brazilian Adolescents

Objective: To analyze the association between individual and contextual characteristics with alcohol indicators of experimentation, use in the last 30 days and drunkenness in Brazilian adolescents.

Methods: Cross-sectional study based on data from 100,914 student attending 9^th grade from the 2015 National School Health Survey. Multilevel logistic regression models were performed for the outcomes: alcohol experimentation; use in the last 30 days and drunkenness; and exposures, adjusted for adolescents’ sociodemographic characteristics.

Results: Girls were more likely to experiment alcohol (OR = 1.09; 95% CI = 1.05–1.12), use it in the last 30 days (OR = 1.09; 95% CI = 1.00–1.13) and less prone to drunkenness (OR = 0.90; 95% CI = 0.87–0.93). A higher proportion of public-school students reported drinking. There was a positive association of substance use by parents, peers and the adolescents themselves with the outcomes. Having a policy of banning alcohol consumption at school was associated with a greater chance of alcohol experimentation in public schools.

Conclusion: Exposure to legal and illegal substances by friends, family members and a prohibitive school environment favored the outcomes.

Family and contextual factors associated with licit drug use in adolescence

OBJECTIVE:

TO evaluate the family and contextual factors associated with licit drug use among 15 to 19-year-old adolescents in the school context.

METHODS:

This is a representative, school-based, cross-sectional study conducted with 746 adolescents from 15 to 19 years old enrolled in public and private schools. Parents/guardians reported on the sociodemographic variables, while adolescents answered questionnaires on drug use, family cohesion and adaptability, oral health literacy and visits to the dentist. Information on school context was obtained at the institution and via municipal publications. Associations between variables were analyzed using unadjusted and adjusted multilevel Poisson regression models.

RESULTS:

Prevalence of licit drug use at least once and a pattern indicative of harmful drug use were 39.8% and 15.1%, respectively. After the adjusted analysis of licit drug use at least once, the variables gender (PR = 1.26; 95%CI: 1.01–1.59), family cohesion (PR = 9.81; 95%CI: 1.23–72.54), and average income of the school district (PR = 0.72; 95%CI: 0.57–0.91) remained in the final model. As for drug abuse, only the detached type (PR = 23.01; 95%CI: 2.46–214.87) and separated type (PR = 13.54; 95%CI: 1.40–130.97) of family cohesion remained in the final model.

CONCLUSION:

Experience with licit drug use was associated with family and contextual factors among the adolescents, while family cohesion was the main factor related to harmful drug use.

Parental Monitoring of Computer Use and its Association with Drug Use among Students in Southern Brazil

BACKGROUND

Parental control is considered important in preventing drug use among adolescents.

OBJECTIVE

This study aimed to explore the association between the perception of parental monitoring of computer use and drug use among adolescent students.

METHODS

A cross-sectional school-based study was conducted in 2012 among 2,980 students aged 12-17 years from Southern Brazil. The outcomes investigated were the use of tobacco, alcohol, cannabis, and other illicit drugs in the previous year. The main exposure was the self-reported perception of parental monitoring of computer use. Poisson regression with robust variance was used for the multivariable analysis.

RESULTS

The prevalence rates of drugs used were 48.3% (95% confidence interval[CI]: 46.5-50.0) for alcohol, 9.7% (95%CI: 8.7-10.7) for tobacco, 5.1% (95%CI: 4.3-5.9) for cannabis, and 8.7% (95%CI: 7.7-9.7) for other illicit drugs. The absence of monitoring of computer use was reported by 44.3% (95%CI: 42.5-46.1) of the students. After adjusting for potential confounders, we found that students aged 12 to 14 years who reported no parental monitoring of computer use had a higher probability of alcohol (Prevalence Ratio[PR] = 1.26, 95%CI:1.07-1.49) and cannabis use (PR = 3.25, 95%CI:1.11-9.53). In addition, a higher consumption of tobacco was observed among students aged 15 to 17 years who reported no parental monitoring of computer use (PR = 1.75, 95%CI:1.17-2.63). In both age groups, psychiatric morbidity was a covariate significantly associated with drug use throughout analysis.

CONCLUSIONS

Parental monitoring of computer use was significantly associated with adolescent drug use, suggesting its importance in preventing drug use.

Can the school environment influence oral health-related behaviours? A multilevel analysis of the Brazilian National Adolescent School-Based Health Survey 2015

OBJECTIVE

To investigate the association between the potential support of schools for oral health promotion and a set of oral health-related behaviours among adolescent students in Brazilian state capitals.

METHODS

A cross-sectional study using individual and school environment data from the 2015 Brazilian National Adolescent School-Based Health Survey (PeNSE) was conducted. The sample consisted of 51 192 students from 1339 public and private schools in the 27 Brazilian State Capitals, aged 11-19 years old. The outcomes were six oral health-related behaviours: dental visits; toothbrushing frequency; soft drink and sweets consumption; smoking and alcohol consumption. The explanatory variable was the Oral Health Promotion School Environment index (OHPSE). Covariates were the adolescents' sociodemographic characteristics and organizational aspects of the schools. A two-level multilevel mixed-effects Poisson regression analysis with fixed slopes and random intercepts was performed, considering the complex sample design.

RESULTS

The prevalence of risk behaviours was 28.0% for 'low frequency of annual dental visits', 6.9% for 'low daily toothbrushing frequency', 28.8% for 'high weekly soft drink consumption', 41.7% for 'high weekly sweet consumption', 18.9% for 'cigarette experimentation' and 52.6% for 'alcoholic beverage experimentation'. The schools were classified as low (36.3%), intermediate (30.4%) and high (33.3%) OHPSE. In the adjusted model, schools with 'high OHPSE' had lower prevalence of 'low frequency of annual dental visits' (PR = 0.94 [95% CI 0.90; 0.99]), 'high weekly frequency of soft drink consumption' (PR = 0.94 [95% CI 0.89; 0.99]) and 'sweet consumption' (PR = 0.96 [95% CI 0.93; 1.00]) than those with 'low OHPSE'. In addition, schools with 'intermediate OHPSE' had higher prevalence's of 'low daily toothbrushing frequency' (PR = 1.12 [95% CI 1.03; 1.23]) and 'cigarette experimentation' (PR = 1.08 [95% CI 1.01; 1.16]) than those with 'low OHPSE'. 'Alcoholic beverage experimentation' was not associated with OHPSE.

CONCLUSIONS

The potential support of schools for oral health promotion was associated with most of the oral health-related behaviours among adolescent students. Those attending schools with higher OHPSE scores reported a higher annual frequency of dental visits and a lower weekly frequency of soft drink and sweet consumption, while those in schools with intermediate OHPSE had a lower daily toothbrushing frequency and a higher rate of cigarette experimentation.

Reprodutibilidade dos módulos bebidas alcoólicas e drogas ilícitas da Pesquisa Nacional de Saúde do Escolar 2015

RESUMO Objetivo: Avaliar a reprodutibilidade dos módulos de uso de bebidas alcoólicas e de drogas ilícitas da Pesquisa Nacional de Saúde do Escolar do ano de 2015. Método: Estudo epidemiológico transversal visando avaliar a reprodutibilidade de instrumentos de coleta, realizado na cidade de Divinópolis, Minas Gerais. A amostra foi composta por alunos cursando o 9° ano do Ensino Fundamental em escolas públicas e privadas em 2017. A reprodutibilidade dos módulos de uso de álcool e drogas ilícitas foi aplicada na amostra, e o reteste ocorreu dentro de 15 a 20 dias com os mesmos alunos. Na análise da concordância teste e reteste, foi utilizado o coeficiente Kappa na análise das variáveis categóricas nominais; Kappa com ponderação linear, na análise das variáveis categóricas ordinais; e Coeficiente de Correlação Intraclasse na análise das variáveis numéricas. Resultados: Participaram 303 alunos. A concordância das respostas foi de satisfatória a moderada e não houve nenhum indicador com concordância razoável ou pobre. As frequências também ficaram próximas entre o teste e o reteste. Conclusão: Os módulos analisados foram satisfatórios, considerados reaplicáveis, e são fontes confiáveis para subsidiar Políticas Públicas e programas voltados aos adolescentes.