Identifying Psychosocial and Ecological Determinants of Enthusiasm In Youth: Integrative Cross-Sectional Analysis Using Machine Learning.

Background: Understanding the factors contributing to mental well-being in youth is a public health priority. Self-reported enthusiasm for the future may be a useful indicator of well-being and has been shown to forecast social and educational success. Typically, cross-domain measures of ecological and health-related factors with relevance to public policy and programming are analyzed either in isolation or in targeted models assessing bivariate interactions.

Effects of cannabis legalisation on patterns of cannabis consumption among adolescents in Ontario, Canada (2001-2019).

Introduction: Cannabis legalisation was enacted on 17 October 2018 in Canada. Accordingly, the effects of cannabis legalisation on patterns of cannabis consumption were examined among adolescents, including on cannabis initiation, any cannabis use, daily cannabis use and cannabis dependence.

Methods: Data from a biennial population-based, cross-sectional survey of students in Ontario were pooled in a pre-post design (2001-2019; N = 89,238).

Increases in Serious Psychological Distress among Ontario Students between 2013 and 2017: Assessing the Impact of Time Spent on Social Media.

Objective: The objective of the current research was to examine the association between time spent on social media and serious psychological distress between 2013 and 2017, a period when the rates of both were trending upward.

Methods: The current study analyzed population-based data from 3 waves of the Ontario Student Drug Use and Health Survey ( = 15,398). Multivariate logistic regression models were used to examine the association between time spent on social media and serious psychological distress controlling for theoretically relevant covariates.

Adolescent traumatic brain injuries: Onset, mechanism and links with current academic performance and physical injuries.

Background: Traumatic brain injuries (TBIs) in adolescence are associated with adverse outcomes, but whether the timing of the onset of TBIs leads to greater deficits has not been determined. We evaluate the relationship between the first and most recent TBI, and current academic performance and medically treated physical injuries.

Methods: Data were derived from the 2015 Ontario Student Drug Use and Health Survey (OSDUHS) administered to adolescents in grades 7 to 12 (ages 12 to 18).

Substance use and internalizing symptoms among high school students and access to health care services: results from a population-based study.

Objectives: To examine co-occurring mental health problems among a population-based sample of high school students in Ontario, Canada, to understand their prevalence, associated risk factors, and relationship with mental health service access and utilization.

Methods: The data were derived from the 2013 Ontario Student Drug Use and Health Survey, a biennial survey of students attending publicly funded Ontario schools, from a subsample of students who completed both the internalizing and substance use portions of the survey (n = 2945). Rates of co-occurring problems were calculated for the previous 12 months.

The prevalence and correlates of texting while driving among a population-based sample of Ontario students.

Objective: Texting while driving (TWD) has a deleterious impact on driving performance and may pose a significant challenge to traffic safety. This challenge may be particularly relevant for young and inexperienced drivers. This study examined the prevalence and risk factors of writing text messages or emails while driving during the past 12 months.

Cross Validation of the Gambling Problem Severity Subscale of the Canadian Adolescent Gambling Index (CAGI/GPSS) on a Sample of Ontario High School Students.

This paper reports on the cross validation of the Gambling Problem Severity Subscale of the Canadian Adolescent Gambling Index (CAGI/GPSS). The CAGI/GPSS was included in a large school based drug use and health survey conducted in 2015. Data from students in grades 9-12 (ages 13-20 years) derived from the (N = 3369 students).

Smoking and binge-drinking among adolescents, Ontario, Canada: Does the school neighbourhood matter?

This study examines whether access to alcohol and tobacco around the school relates to higher or lower odds of cigarette smoking and binge-drinking among Ontario high school students. The 2013 Ontario Student Drug Use and Health Survey provides data on self-reported smoking and drinking, individual covariates and subjective socio-economic status for 6142 students (grades 9-12) in Ontario, Canada. Locations of schools were geocoded and 1.

Ethnoracial differences in cannabis use among native-born and foreign-born high school students in Ontario.

The objective of this study was to examine the association of ethnoracial background and immigrant status to cannabis use among students in Ontario, Canada. Data were derived from the Ontario Student Drug Use and Health Survey, a school-based, province-wide survey of students in Grades 7-12. The survey utilized a stratified two-stage cluster design.

Cross-sectional examination of the association of co-occurring alcohol misuse and traumatic brain injury on mental health and conduct problems in adolescents in Ontario, Canada.

Objective: This study describes the impact of traumatic brain injury (TBI) and hazardous drinking on mental health and behavioural issues among Ontario adolescents. In particular, we assessed the incremental co-occurrence of hazardous drinking with a history of TBI, in comparison to experiencing just one of these conditions.

Methods: A cross-sectional subsample of 3130 Ontario adolescents attending grades 9-12, and aged 10-21 were surveyed in 2013 as a part of the Centre for Addiction and Mental Health's Ontario Student Drug Use and Health Survey.

Possession of weapon and school violence among adolescents and their association with history of traumatic brain injury, substance use and mental health issues.

Purpose: Assessment of the association between illegal possession of weapon and assault on school property among adolescents with and without a history of traumatic brain injury (TBI) while assessing risk factors for these outcomes.

Methods: Data were derived from the Centre for Addiction and Mental Health's 2013 Ontario Student Drug Use and Health Survey completed by students in grades 7-12 (ages 11-20).

Results: In this sample of 5478 adolescents, 6.

Looking beyond cigarettes: Are Ontario adolescents with asthma less likely to smoke e-cigarettes, marijuana, waterpipes or tobacco cigarettes?

Objectives: The purpose of this paper is to examine whether high school students in Ontario with asthma smoke cigarettes, waterpipes, marijuana or e-cigarettes more or less than those without asthma.

Methods: The 2013 Ontario Student Drug Use and Health Survey provides self-report data on tobacco cigarettes, waterpipes, marijuana and e-cigarette smoking and asthma rates from 109 high schools in Ontario, Canada. Individual and social characteristics were also collected.

Ten-year trends in overweight/obesity among Ontario middle and high school students and their use in establishing baseline measures for government reduction targets.

Objectives: Public health concern about increasing levels of child/youth overweight and obesity has resulted in initiatives to address this issue. In 2012, the Ontario Ministry of Health and Long-Term Care (MOHLTC) established a target to reduce childhood obesity by 20% within five years. In this paper, we examine trends and establish baseline levels of overweight/obesity to assess the impacts of population-level interventions.

Energy Drinks, Alcohol, Sports and Traumatic Brain Injuries among Adolescents.

Importance: The high prevalence of traumatic brain injuries (TBI) among adolescents has brought much focus to this area in recent years. Sports injuries have been identified as a main mechanism. Although energy drinks, including those mixed with alcohol, are often used by young athletes and other adolescents they have not been examined in relation to TBI.

Waterpipe use among high school students in Ontario: Demographic and substance use correlates.

Objective: To examine waterpipe use and its association with demographic factors, tobacco cigarette smoking, ever use of electronic cigarettes (e-cigarettes) and alcohol use among high school students.

Methods: Data were derived from the 2013 Ontario Student Drug Use and Health Survey, a school-based survey of 7th to 12th grade students. This province-wide survey was based on a stratified two-stage cluster design.

Substance Use and Related Harms Among Adolescents With and Without Traumatic Brain Injury.

Objective: The relationship between self-reported lifetime traumatic brain injury (TBI) and drug and alcohol use and associated harms was examined using an epidemiological sample of Canadian adolescents.

Settings And Design: Data were derived from a 2011 population-based cross-sectional school survey, which included 6383 Ontario 9th-12th graders who self-completed anonymous self-administered questionnaires in classrooms. Traumatic brain injury was defined as loss of consciousness for at least 5 minutes or a minimum 1-night hospital stay due to symptoms.

Ever Use of Nicotine and Nonnicotine Electronic Cigarettes Among High School Students in Ontario, Canada.

Introduction: There are limited data on the use of electronic cigarettes (e-cigarettes) among youth, particularly with regard to the use of nicotine versus nonnicotine products. This study investigates ever use of nicotine and nonnicotine e-cigarettes and examines the demographic and behavioral correlates of e-cigarette use in Ontario, Canada.

Methods: Data for 2,892 high school students were derived from the 2013 Ontario Student Drug Use and Health Survey.

The moderating effects of sex and age on the association between traumatic brain injury and harmful psychological correlates among adolescents.

Background: Although it is well established that sex is a risk factor in acquiring a traumatic brain injury (TBI) among adolescents, it has not been established whether it also moderates the influence of other TBI psychological health correlates.

Methods And Findings: Data were derived from a 2011 population-based cross-sectional school survey, which included 9,288 Ontario 7th-12th graders who completed anonymous self-administered questionnaires in classrooms. Response rate was 62%.

Energy drink consumption and associations with demographic characteristics, drug use and injury among adolescents.

Objective: To examine energy drink consumption and its association with demographic characteristics, drug use, and injury among adolescents.

Methods: Data on 4,342 adolescents were derived from the 2011 Ontario Student Drug Use and Health Survey, a province-wide school-based survey of students in grades 7 through 12. The survey was based on a two-stage cluster design and analyses include appropriate adjustments for the complex sample design.

Subjective social status, immigrant generation, and cannabis and alcohol use among adolescents.

Research indicates that subjective perceptions of socioeconomic status (SES) affect aspects of health and behavior. There has been little research attention to how objective (e.g.

Involvement with child protective services: is this a useful question in population-based surveys?

Direct questions on child maltreatment in population-based surveys are often limited by ethical and methodological issues. This restricts the ability of researchers to examine an important aspect of early adversity and its relationship to health and behavior. An alternative to excluding issues of maltreatment entirely in population-based surveys is to include questions on child and family involvement with child protective services (CPS).

Prevalence and key covariates of non-medical prescription opioid use among the general secondary student and adult populations in Ontario, Canada.

Introduction And Aims: To assess the prevalence and key covariates of non-medical prescription opioid use (NMPOU) in two representative surveys of adults (Centre for Addiction and Mental Health Monitor, CM) and secondary-school students (Ontario Student Drug Use and Health Survey, OSDUHS).

Design And Methods: Data from the 2010 and 2011 cycles (n = 4023) of CM--a stratified, multi-stage, random-digit-dialling telephone survey of adults (18 years and older)--and the 2011 cycle of OSDUHS (n = 3266)--a self-administered written questionnaire-based survey of grade 7-12 public system students--were used. Besides NMPOU prevalence, associations were assessed by univariate and multi-step multivariate (logistic regression) analyses.