Mahmood Reza Gohari
Biographic Data
| ID | 5411361 |
|---|---|
| NAME | Mahmood Reza Gohari |
| GIVEN NAMES | Mahmood Reza |
| FAMILY NAME | Gohari |
| SIGNATURE | GOHARI M R |
| AFFILIATIONS | University of Waterloo |
| ORCID | 0000-0002-4289-2022 |
| VERIFIED | Yes |
| TOTAL WORKS | 14 |
| TOTAL CITATIONS | 5 |
| WORKS AS AUTHOR | 14 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 2 |
Prospective Relations Between Self‐Concept and Adolescent Physical Education Participation
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…
Evaluating the impact of Canadian cannabis legalization on cannabis use outcomes in emerging adults
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…
Factors associated with prospective changes in weight control intentions among adolescents
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
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 …
Evaluating the One-Year Impact of School e-Cigarette Use Interventions among Current Youth e-Cigarette Users in the Compass Study, 2017/18–2018/19
There is a lack of evidence for the impact of school-based e-cigarette interventions among current e-cigarette users. This natural experimental evaluation study evaluated the one-year impact of various school-based e-cigarette prevention/cessation programs among a sample of current youth e-cigarette users. The COMPASS study sample included n = 3586 current e-cigarette users from n = 90 schools with data collected between 2017 and 2019. Student e-…
Bidirectional associations between cannabis, e-cigarette, and cigarette use among Canadian youth
Substance use behaviours have been found to cluster in youth, and cannabis use has been previously linked to tobacco and e-cigarette use. The objective of the current study was to examine the bidirectional associations between cannabis, e-cigarette, and cigarette use among a large sample of Canadian secondary school students. A sample of students in grades 9–11 (n = 14,652) from Ontario and Alberta, Canada who participated in two waves of the COM…
Covid-19 Vaccine Perceptions and Differences by Sex, Age, and Education in 1,367 Community Adults in Ontario
Background: COVID-19 is a global pandemic and vaccination efforts may be impeded by vaccine hesitancy. The present study examined willingness to receive a COVID-19 vaccine, the associated reasons for willingness/unwillingness, and vaccine safety perceptions in a cross-sectional assessment of community adults in Ontario. Methods: One thousand three hundred sixty seven individuals (60.6% female, mean age = 37.5%) participated in this study between …
Cannabis Use, Screen Time, and Internalizing Symptoms among Canadian Youth
Does school connectedness differ by student ethnicity? A latent class analysis among Canadian youth
Latent class analysis was performed to identify clusters of items on the Longitudinal Study of Adolescent Health – School Connectedness Scale among students. Cluster membership was explored by student-reported ethnicity. The sample included students attending Canadian secondary schools in two waves of the COMPASS study: Years 4 (Y4:2015/16) (N=40,436) and 7 (Y7:2018/19) (N=60,610). Results were comparable across waves. Four clusters resulted: str…
The impact of an alcohol policy change on developmental trajectories of youth alcohol use
Exploring the Bi-Directional Association between Tobacco and E-Cigarette Use among Youth in Canada
Research has demonstrated associations between e-cigarette use and tobacco use among youth. However, few studies have examined whether reciprocal relationships exist between e-cigarette and tobacco use. The objective of this study was to examine whether bi-directional associations exist between e-cigarette and tobacco use in a large longitudinal sample of Canadian youth. A longitudinal sample of secondary students (n = 6729) attending 87 schools …
Effect of nutrition education intervention based on Pender's Health Promotion Model in improving the frequency and nutrient intake of breakfast consumption among female Iranian students
Objective To determine the effectiveness of nutrition education intervention based on Pender's Health Promotion Model in improving the frequency and nutrient intake of breakfast consumption among female Iranian students. Design The quasi-experimental study based on Pender's Health Promotion Model was conducted during April–June 2011. Information (data) was collected by self-administered questionnaire. In addition, a 3 d breakfast record was analy…
A qualitative study of the difficulties in reaching sustainable universal health insurance coverage in Iran
OBJECTIVE To understand the Iranian health financing system and provide lessons for policy makers about achieving universal coverage. METHODS Twenty-five interviewees from seven major health insurance companies were selected for a qualitative study in 2007. Using a semi-structured interview, three main tasks of the health financing system (revenue collection, risk pooling and purchasing) were investigated. A framework method was applied for the d…
Effect of Sociocultural Context and Parenting Style on Scholastic Achievement among Iranian Adolescents
School grades, family demographics and responses to the parental authority questionnaire were assessed in 240 eighth‐grade students in the southern, central and northern parts of Tehran, Iran's capital. The result showed that poorer families with traditional values had more authoritarian attitudes toward parenting than richer families with more modern values. In contrast to the studies conducted in East Asian societies, the current study found th…
Effect of Sociocultural Context and Parenting Style on Scholastic Achievement among Iranian Adolescents
School grades, family demographics and responses to the parental authority questionnaire were assessed in 240 eighth‐grade students in the southern, central and northern parts of Tehran, Iran's capital. The result showed that poorer families with traditional values had more authoritarian attitudes toward parenting than richer families with more modern values. In contrast to the studies conducted in East Asian societies, the current study found th…
A qualitative study of the difficulties in reaching sustainable universal health insurance coverage in Iran
OBJECTIVE To understand the Iranian health financing system and provide lessons for policy makers about achieving universal coverage. METHODS Twenty-five interviewees from seven major health insurance companies were selected for a qualitative study in 2007. Using a semi-structured interview, three main tasks of the health financing system (revenue collection, risk pooling and purchasing) were investigated. A framework method was applied for the d…
Effect of Sociocultural Context and Parenting Style on Scholastic Achievement among Iranian Adolescents
School grades, family demographics and responses to the parental authority questionnaire were assessed in 240 eighth‐grade students in the southern, central and northern parts of Tehran, Iran's capital. The result showed that poorer families with traditional values had more authoritarian attitudes toward parenting than richer families with more modern values. In contrast to the studies conducted in East Asian societies, the current study found th…
A qualitative study of the difficulties in reaching sustainable universal health insurance coverage in Iran
OBJECTIVE To understand the Iranian health financing system and provide lessons for policy makers about achieving universal coverage. METHODS Twenty-five interviewees from seven major health insurance companies were selected for a qualitative study in 2007. Using a semi-structured interview, three main tasks of the health financing system (revenue collection, risk pooling and purchasing) were investigated. A framework method was applied for the d…
Effect of nutrition education intervention based on Pender's Health Promotion Model in improving the frequency and nutrient intake of breakfast consumption among female Iranian students
Objective To determine the effectiveness of nutrition education intervention based on Pender's Health Promotion Model in improving the frequency and nutrient intake of breakfast consumption among female Iranian students. Design The quasi-experimental study based on Pender's Health Promotion Model was conducted during April–June 2011. Information (data) was collected by self-administered questionnaire. In addition, a 3 d breakfast record was analy…
Exploring the Bi-Directional Association between Tobacco and E-Cigarette Use among Youth in Canada
Research has demonstrated associations between e-cigarette use and tobacco use among youth. However, few studies have examined whether reciprocal relationships exist between e-cigarette and tobacco use. The objective of this study was to examine whether bi-directional associations exist between e-cigarette and tobacco use in a large longitudinal sample of Canadian youth. A longitudinal sample of secondary students (n = 6729) attending 87 schools …
The impact of an alcohol policy change on developmental trajectories of youth alcohol use
Covid-19 Vaccine Perceptions and Differences by Sex, Age, and Education in 1,367 Community Adults in Ontario
Background: COVID-19 is a global pandemic and vaccination efforts may be impeded by vaccine hesitancy. The present study examined willingness to receive a COVID-19 vaccine, the associated reasons for willingness/unwillingness, and vaccine safety perceptions in a cross-sectional assessment of community adults in Ontario. Methods: One thousand three hundred sixty seven individuals (60.6% female, mean age = 37.5%) participated in this study between …
Cannabis Use, Screen Time, and Internalizing Symptoms among Canadian Youth
Does school connectedness differ by student ethnicity? A latent class analysis among Canadian youth
Latent class analysis was performed to identify clusters of items on the Longitudinal Study of Adolescent Health – School Connectedness Scale among students. Cluster membership was explored by student-reported ethnicity. The sample included students attending Canadian secondary schools in two waves of the COMPASS study: Years 4 (Y4:2015/16) (N=40,436) and 7 (Y7:2018/19) (N=60,610). Results were comparable across waves. Four clusters resulted: str…
Bidirectional associations between cannabis, e-cigarette, and cigarette use among Canadian youth
Substance use behaviours have been found to cluster in youth, and cannabis use has been previously linked to tobacco and e-cigarette use. The objective of the current study was to examine the bidirectional associations between cannabis, e-cigarette, and cigarette use among a large sample of Canadian secondary school students. A sample of students in grades 9–11 (n = 14,652) from Ontario and Alberta, Canada who participated in two waves of the COM…
Evaluating the One-Year Impact of School e-Cigarette Use Interventions among Current Youth e-Cigarette Users in the Compass Study, 2017/18–2018/19
There is a lack of evidence for the impact of school-based e-cigarette interventions among current e-cigarette users. This natural experimental evaluation study evaluated the one-year impact of various school-based e-cigarette prevention/cessation programs among a sample of current youth e-cigarette users. The COMPASS study sample included n = 3586 current e-cigarette users from n = 90 schools with data collected between 2017 and 2019. Student e-…
Factors associated with prospective changes in weight control intentions among adolescents
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
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 …
Prospective Relations Between Self‐Concept and Adolescent Physical Education Participation
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…
Evaluating the impact of Canadian cannabis legalization on cannabis use outcomes in emerging adults
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…
Medicine (10 works) · Demography (9 works) · Psychology (9 works) · Environmental health (7 works) · Demography (4 works) · Developmental psychology (4 works) · Nursing (4 works) · Social Psychology (4 works) · Sociology (4 works) · Child and Adolescent Psychosocial and Emotional Development (3 works)