Scott T Leatherdale

Dados Biográficos

ID137050
NOMEScott T Leatherdale
PRENOMESScott T
SOBRENOMELeatherdale
ASSINATURALEATHERDALE S T
AFILIAÇÕESUniversity of Waterloo
ORCID0000-0001-5926-3065
VERIFICADOSim
TOTAL DE OBRAS141
TOTAL DE CITAÇÕES40
TOTAL COMO AUTOR141
TOTAL COMO EDITOR0
PRIMEIRO ANO DE PUBLICAÇÃO2005
ANO MAIS RECENTE DE PUBLICAÇÃO2026
ÍNDICE H3

  • Untangling the Relationship Between Income Inequality and Poly-Substance Use Among Adolescents in Canada

    Open AccessJason Mulimba Were, Amy B Crandall et al.ARTICLEHealth Education & Behavior2026

    Growing evidence suggests that income inequality is associated with adolescent substance use behaviors, prompting the presumption that it may also be associated with poly-substance use. This study examined the association between income inequality and poly-substance use and tested whether anxiety indirectly affects this relationship. We used cross-sectional survey data from the 2018–2019 Cannabis, Obesity, Mental health, Physical activity, Alcoho…

  • The Cross‐Sectional and Longitudinal Associations Between Social Media and Mental Health Among a Large Sample of Adolescents, Inclusive of Transgender/Gender‐Diverse Adolescents

    Open AccessMadelyn Curle, Susan Hunter et al.ARTICLEJournal of Adolescence2026

    INTRODUCTION: The objectives of this study were to examine: (1) the cross-sectional and longitudinal associations between social media (SM) time and mental health outcomes among a large sample of Canadian adolescents (ages 12-18) and (2) if associations are moderated by gender. METHODS: Data from the Cannabis, Obesity, Mental health, Physical activity, Alcohol, Smoking, and Sedentary behaviour (COMPASS) study were used to conduct two cross-sectio…

  • Trajectories of loneliness in Canadian adolescents over the Covid-19 pandemic

    Kristi Baerg Macdonald, Karen A Patte et al.ARTICLEDevelopmental Psychology2026

    Increases in adolescent loneliness were a significant concern during the lockdowns of the COVID-19 pandemic. We use longitudinal survey data from the Cannabis Use, Obesity, Mental Health, Physical Activity, Alcohol Use, Smoking, and Sedentary Behavior study from 2017 to 2023 to assess whether increases in loneliness correspond to lockdowns, whether different cohorts differ in the trajectories of loneliness ratings and whether social support and r…

  • Investigating public health unit engagement in secondary schools and student substance use over time

    Open AccessUrvi Rai, Karen A Patte et al.ARTICLECanadian Journal of Public Health2026Referências: 19

  • Toward a national school food program in Canada

    Open AccessKaterina Maximova, Julia Dabravolskaj et al.ARTICLECanadian Food Studies / La Revue…2025

    Introduction: In Canada, there is a growing commitment to developing a national school food program (SFP) to improve children’s diet and address existing and widening health inequities. Having an understanding of the current landscape of SFP offerings and context is essential to inform the national SFP development. Methods: Available data are scarce; we drew from three unique school-based surveys: a provincially-representative sample of elementar…

  • Prospective Relations Between Self‐Concept and Adolescent Physical Education Participation

    Open AccessKelsey Sick, Eva Pila et al.ARTICLEJournal of Adolescence2025

    Introduction Sustained participation in physical education classes during adolescence can help promote lifelong engagement in physical activity, which is vital for the physical and mental health of adolescents. Self‐concept, particularly in the domains of global and physical appearance self‐perceptions, has been identified as a key predictor of physical activity behavior. However, there is limited understanding of how these facets influence conti…

  • Life meaning and purpose as an unrecognized determinant of mental health equity in Canadian adolescents

    Open AccessValerie Michaelson, William Pickett et al.ARTICLEBMC Public Health2025

    Consistent with determinants of health models and past cross-national analyses of adolescent health survey data in Canada, results provide prospective evidence in support of life meaning and purpose as an intermediary determinant of mental health in adolescents. Experiences that foster a sense of meaning and purpose in life require recognition as determinants of health, and suggest an intangible resource that can be applied to clinical and public…

  • Validation of the ecological momentary well-being instrument (Emowi) in Canadian adolescents

    Open AccessMarie Buzzi, Karen A Patte et al.ARTICLEQuality of Life Research2025

  • Evaluating the impact of Canadian cannabis legalization on cannabis use outcomes in emerging adults

    Open AccessAmanda Doggett, Kyla L Belisario et al.ARTICLEInternational Journal of Drug…2025

    Findings suggest that cannabis legalization was associated with smaller reductions in cannabis use frequency and adverse consequences than expected in the Canadian sample compared to the American control sample. Although the magnitude of these impacts was small, these findings suggest the start of diverging cannabis trajectories. Given that effects of legalization are hypothesized to be long-term rather than immediate, further monitoring of the i…

  • Income inequality and adherence to 24-hour movement guideline recommendations among adolescents

    Susan Hunter, Zack Perala et al.ARTICLEJournal of Epidemiology and…2025Citada por: 1Referências: 29

    BACKGROUND: There is a paucity of literature regarding income inequality and adolescent movement behaviours (physical activity, sedentary behaviours, sleep). This study examined whether income inequality was associated with meeting Canadian 24-Hour Movement Guidelines (24HMG) recommendations among adolescents over time. METHODS: Longitudinal data from adolescents (n=9299) in the Cannabis, Obesity, Mental health, Physical activity, Sedentary behav…

  • Emerging use of oral nicotine pouches among Canadian adolescents

    Open AccessKate Battista, Mikael Piché-Ayotte et al.ARTICLECanadian Journal of Public Health2025Referências: 25

  • Income inequality modified adolescent substance use trajectories from 2018-19 to 2020-21

    Open AccessSusan Hunter, Urvi Rai et al.ARTICLESocial Science & Medicine2025Referências: 39

    Income inequality may have modified adolescent substance use trajectories during the COVID-19 pandemic, with both increased and decreased likelihoods observed. More research investigating potential mechanisms is needed

  • Classifying Patterns of Delinquent Behaviours and Experiences of Victimization

    Open AccessAlex Luther, Scott T Leatherdale et al.ARTICLEChild & Youth Care Forum2024

  • Factors associated with prospective changes in weight control intentions among adolescents

    Open AccessKristen M Lucibello, 司朗 三宅 et al.ARTICLEJournal of Adolescence2024

    Results highlight the prevalence of maladaptive weight control intention changes among adolescents, and elucidate related behavioral, interpersonal, demographic, and psychological factors. Findings can inform targeted intervention and prevention strategies to disrupt maladaptive changes in weight control intentions among high-risk subgroups.

  • Inequitable Changes in School Connectedness During the Ongoing Covid ‐19 Pandemic in a Cohort of Canadian Adolescents

    Open AccessKaren A Patte, Mahmood Reza Gohari et al.ARTICLEJournal of School Health2024

    BACKGROUND: We examined whether subgroups of adolescents experienced disparate changes in school connectedness-a robust predictor of multiple health outcomes-from before the COVID-19 pandemic to the first full school year following pandemic onset. METHODS: We used 2 waves of prospective survey data from 7178 students attending 41 Canadian secondary schools that participated during the 2019-2020 (T1; pre-COVID-19 onset) and 2020-2021 (T2; ongoing …

  • Association Between Area‐Level Income Inequality and Health‐Related School Absenteeism

    Open AccessSusan Hunter, Carla Hilario et al.ARTICLEJournal of School Health2024

    BACKGROUND: Income inequality is theorized to impact health. However, evidence among adolescents is limited. This study examined the association between income inequality and health-related school absenteeism (HRSA) in adolescents. METHODS: Participants were adolescents (n = 74,501) attending secondary schools (n = 136) that participated in the 2018-2019 wave of the COMPASS study. Chronic (missing ≥3 days of school in the previous 4 weeks) and pr…

  • Income inequality and comorbid overweight/obesity and depression among a large sample of Canadian secondary school students

    Open AccessJason Mulimba Were, Susan Hunter et al.ARTICLESSM - Population Health2024

    Policies aimed at reducing income inequality, and interventions to improve social cohesion, may contribute to reducing the risk of OWO-depression comorbidity among adolescents

  • Changes to Secondary School Physical Activity Programs and Policy after Emerging from Covid-19 Lockdowns

    Open AccessHussain Chattha, Markus J Duncan et al.ARTICLEInternational Journal of…2024

    The purpose of this study was to explore the adaptations that schools made to physical activity programs and facilities, and disparities by area urbanicity and income, during the first school year after the emergence of the COVID-19 pandemic. In a convenience sample of 132 secondary schools in Canada, school contacts responded to an annual survey in the 2020-2021 school year on changes to physical activity programs and facilities, and related sta…

  • Adolescents’ impairment due to climate anxiety is associated with self-efficacy and behavioral engagement

    Open AccessAnne-Marie Turcotte-Tremblay, Gabrielle Fortier et al.ARTICLEBMC Public Health2024

    The findings are useful to identify and support vulnerable groups that are more likely to experience impairment due to climate anxiety. The feeling of climate self-efficacy was not well developed among some groups of adolescents. Improving adolescents' beliefs in their capacity to help address climate change may be a key strategy to promote pro-environmental actions. As the threat of climate change increases, it will be important to follow the ev…

  • Do sociodemographic risk profiles for adolescents engaging in weekly e-cigarette, cigarette, and dual product use differ

    Open AccessKate Battista, Katelyn Battista et al.ARTICLEBMC Public Health2024

    This study used a novel modelling approach (CART) to identify combinations of sociodemographic characteristics that profile high-risk groups for exclusive e-cigarette and dual-product use. Unique risk profiles were identified, suggesting that e-cigarettes are attracting new demographics of adolescents who have not previously been considered as high-risk for traditional cigarette use

  • Inequities in sleep duration and quality among adolescents in Canada

    Open AccessJessica Mitchell, Megan J Magier et al.ARTICLEBMC Public Health2024

    Differences in sleep duration and quality were most profound among adolescents from the lowest and highest SES. Racial disparities were more evident on weekdays. Compensatory weekend sleep appears more pronounced in females than males. Addressing sleep inequities is critical, as a robust predictor of multiple health outcomes

  • Identifying latent classes of physical activity profiles over time among adolescents in Ontario, Canada

    Open AccessM Claire Buchan, Sarah A Richmond et al.ARTICLEBMC Public Health2024

    Findings suggest that latent physical activity profiles differ by sex. Guideline adherence was the most common class among females, indicating high levels of independent physical activity, whereas PE & Sport participation was the most common class among males, indicating greater tendency towards organized activities. Additionally, a substantial number of male students were not engaging in any physical activity. Participation in both PE and sports…

  • Attitudes, subjective norms and perceived behavioural control factors influencing Canadian secondary school students’ milk and milk alternatives consumption

    Open AccessCarise Thompson, Susan J Elliott et al.ARTICLEPublic Health Nutrition2024

    Objective: The research objectives were to evaluate factors that influence Canadian secondary school students’ milk and milk alternatives (MMA) consumption and to explore associations through age and gender lenses. Design: A qualitative design was used, consisting of semi-structured interviews and photo-elicitation methods. Analysis was guided by the Theory of Planned Behaviour (TPB). Deductive and inductive thematic analyses were used to generat…

  • Assessing the impact of missing data in youth overweight and obesity research

    Amanda Doggett, Ashok Chaurasia et al.ARTICLEInternational Journal of Social…2024Referências: 2

    Youth overweight and obesity (OWOB) surveillance often uses body mass index (BMI) derived from self-reported height and weight, but these measures can suffer from high proportions of missing data. Complete case analysis (CCA) is the most common approach to handle missing data, but this approach can introduce bias if missing data are not missing completely at random. Using BMI and related covariate data from 36,546 female and 37,126 male youth age…

  • Exploring the cross-sectional association between the strength of school vaping policies and student vaping behaviours using data from the 2021–2022 Compass Study

    Open AccessErin Kostuch, Richard Bélanger et al.ARTICLECanadian Journal of Public Health2024Referências: 18

    The STPI quickly identified components of school vaping policies that were missing. The overall score of most school vaping policies in our sample was low and most school vaping policies lacked many important components. Future studies should explore factors associated with adolescent vaping and identify effective prevention measures