Joseph Studer
Dados Biográficos
| ID | 3799989 |
|---|---|
| NOME | Joseph Studer |
| PRENOMES | Joseph |
| SOBRENOME | Studer |
| ASSINATURA | STUDER J |
| AFILIAÇÕES | University of Lausanne |
| ORCID | 0000-0002-1390-7707 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 32 |
| TOTAL DE CITAÇÕES | 11 |
| TOTAL COMO AUTOR | 32 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2011 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 2 |
Behavioral addictions and their reciprocal associations with each other, substance use disorders, and mental health problems
The Impact of the Covid-19 Pandemic on Unassisted Suicide and Assisted Suicide Rates in French-Speaking Switzerland
Aims : Most studies on the impact of COVID-19 have shown a decrease or no change in unassisted suicide rates, but effects on assisted suicide have not been studied. We aimed to estimate the association between the COVID-19 pandemic and both types of suicide. Methods : Between 2017 and 2021, 1280 assisted suicides and 535 unassisted suicides were recorded in three Swiss cantons. We conducted descriptive and time series analyses on monthly suicide …
Associations of binge gaming (5 or more consecutive hours played) with gaming disorder and mental health in young men
Consciousness alterations in a cohort of young Swiss men
This study supports the potential for psychedelics to induce CAs perceived as beneficial to life among people using street drugs, possibly reflecting the mechanism underlying the therapeutic potential of psychedelics
Longitudinal Associations between Sensation Seeking and Its Components and Alcohol Use in Young SWISS Men—Are There Bidirectional Associations
The association between alcohol use and sensation seeking is well known. Less is known about whether longitudinal changes in alcohol use are associated with changes in sensation seeking and in which direction influence might flow. 5125 men aged 20.0 years old at baseline and 25.4 years old at follow-up responded to the Brief Sensation Seeking Questionnaire, which measures four subscales of experience seeking, boredom susceptibility, thrill- and a…
Sexual Minority Orientation Is Associated With Greater Psychological Impact Due to the Covid-19 Crisis—Evidence From a Longitudinal Cohort Study of Young Swiss Men
Background: The COVID-19 pandemic and its countermeasures may have had a significant impact on the psychological well-being of specific population subgroups. The present study investigated whether sexual minority men (defined here as attracted partly or exclusively to men) from an ongoing cohort study of young Swiss men experienced different psychological impacts, levels of substance use and addictive behaviors, and to which degree pre-existing v…
Changes in substance use and other reinforcing behaviours during the Covid-19 crisis in a general population cohort study of young Swiss men
Prosocialness in young males with substance and behavioral addictions
Development of alcohol use disorder in young Swiss men
This four-wave longitudinal study aimed to examine the associations between retrospectively perceived parenting profiles in adolescence and the development of alcohol use disorder (AUD) throughout emerging adulthood. The cohort consisted of 190 young Swiss men who completed retrospective reports of parenting at baseline and a short AUD self-report screening tool at four measurement times (mean age at baseline = 20.18; Time 1: 21.52; Time 2: 25.61…
Online Gambling's Associations With Gambling Disorder and Related Problems in a Representative Sample of Young Swiss Men
Background and Aims: Internet gambling has recently grown in popularity, but relatively little is known about how online and the combination of online and offline (mixed) gambling are associated with gambling disorder (GD) and related problems. The present research examined in a cohort study sample of young Swiss men how their gambling activities and gambling-related problems differed across the spectrum from offline to online gambling. Sample: A…
Are Changes in Personality Traits and Alcohol Use Associated? A Cohort Study Among Young Swiss Men
Objective: It is well known that certain personality traits are associated with alcohol use. Because less is known about it, we wished to investigate whether changes in alcohol use were longitudinally associated with changes in personality and in which direction the influence or causation might flow. Methods: Data came from the self-reported questionnaire answers of 5,125 young men at two time points during the Cohort study on Substance Use Risk …
The Association between Type and Intensity of Sport and Tobacco or Nicotine Use—A Cross-Sectional Study among Young Swiss Men
The objective of this study was to assess the association between tobacco/nicotine use and type and intensity of sport. Data were drawn from the second follow-up of the Cohort Study on Substance Use Risk Factors. Young Swiss men completed a questionnaire about tobacco/nicotine use (cigarette, vaping, snus, snuff), type and intensity of sport and other demographic and medical variables. Among the 5414 included participants (mean age 25.5), 3434 (6…
Longitudinal Associations between Life Satisfaction and Cannabis Use Initiation, Cessation, and Disorder Symptom Severity in a Cohort of Young Swiss Men
Motivations for cannabis use may include coping with negative well-being. Life satisfaction, a hallmark of subjective well-being, could play a role in cannabis use among young adults. This study aims to assess whether life satisfaction (SWLS) at age 21 is associated with cannabis initiation and cessation between the ages of 21 and 25, and with cannabis use severity (CUDIT) at age 25. Data were drawn from a cohort of young Swiss males. Association…
Interpretation of DSM-5 alcohol use disorder criteria in self-report surveys may change with age. A longitudinal analysis of young Swiss men
Background: General population surveys using self-reported measures show alcohol use disorder (AUD) to be most prevalent in young adulthood, but this may be due to misinterpretations of AUD criteria among inexperienced drinkers. The present study investigated changes in prevalence of criteria during emerging adulthood.Methods: 4924 young Swiss men were followed across three waves (age at wave 1 (w1): 20; w2: 21; w3: 25 years). We measured AUD acc…
Comparing Mental Health across Distinct Groups of Users of Psychedelics, MDMA, Psychostimulants, and Cannabis
Differences in mental health (MH) of users of distinct psychoactive substances have been shown. Both substance use (SU) and MH in users are influenced by stressful life events. This study compared MH parameters in distinct groups of substance users and evaluated the impact of stress factors on these outcomes. Data stem from the longitudinal Swiss Cohort Study on Substance Use Risk Factors (C-SURF) involving 4,475 young adult men. Distinct groups …
Bidirectional Associations Between Self-Reported Gaming Disorder and Adult Attention Deficit Hyperactivity Disorder
Background: Gaming disorder (GD) has been shown to co-occur with attention deficit hyperactivity disorder (ADHD), yet few studies to date have investigated their longitudinal associations. Method: The sample included 5,067 young Swiss men (mean age was 20 years at wave 1 and 25 years at wave 3). Measures were the Game Addiction Scale and the Adult ADHD Self-Report Scale (6-item screener). Longitudinal associations were tested using autoregressive…
Comorbidity of Symptoms of Alcohol and Cannabis Use Disorders among a Population-Based Sample of Simultaneous Users. Insight from a Network Perspective
Research into comorbidity of alcohol and cannabis use disorders has resulted in inconsistent findings, especially among simultaneous users, who used alcohol and cannabis together on a single occasion. This study investigated the association of alcohol and cannabis use disorders among simultaneous users using a network perspective, which considers direct relationships between symptoms. We used a subset of simultaneous alcohol and cannabis users dr…
Do sensation seeking and aggression traits moderate the association between peer influence and alcohol outcomes among young Swiss men
Peer influence is a strong predictor of drinking behaviors, yet not all young adults respond to its influence in the same way. This study aimed to identify young adults who are more vulnerable to peer influence by prospectively examining whether sensation seeking and aggression traits moderate the associations between peer influence and alcohol use and related consequences among young male drinkers. Participants (N = 4,624 participants) were youn…
Are alcohol outlet densities strongly associated with alcohol‐related outcomes? A critical review of recent evidence
Socioeconomic status and substance use among Swiss young men
The relationship between SES and substance use was complex in this sample. Higher socioeconomic status was associated with more alcohol and other illicit drugs use, while lower socioeconomic status was related to more tobacco use. Education level and perceived family income may have different impacts on substance use and may vary by substance
Validation of French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire among young Swiss males, and its relationship with substance use
This study main purpose was the validation of both French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire. The sample group comprised 5065 Swiss men from the "Cohort Study on Substance Use Risk Factors." Multigroup Confirmatory factor analysis showed that a three-factor model fits the data well, which substantiates the generalizability of Perceived Neighborhood Social Cohesion Questionnaire factor structure, regardle…
Physical Activity and Snus
The study aimed at assessing the link between physical activity (PA), sports activity and snus use among young men in Switzerland. Data from the Cohort Study on Substance Use Risk Factors (C-SURF) were used to measure PA with the International Physical Activity Questionnaire and sports activity with a single item. Multivariate logistic regression analysis was conducted to measure the association between snus use, PA and sports activity. Similar m…
Drinking locations and alcohol-related harm
Use of Neuroenhancement Drugs
Prevalence of ND use is low in Switzerland relative to other countries such as the United States. Patterns of ND use differed depending on academic status, suggesting that while college student ND users tended to do so rarely (probably to enhance cognitive abilities for exams), non-college male users used other NDs more frequently (probably to "get high")
Health impact of sport and exercise in emerging adult men
Age-relevance of person characteristics
The authors investigated normative beliefs about personality development. Young, middle-aged, and older adults indicated the age-relevance of 835 French adjectives by specifying person characteristics as typical for any age decade from 0 to 99 years. With this paradigm, the authors determined age-relevance (How typical is a characteristic for a given age decade?). Most characteristics were ascribed to young adulthood. The pattern differed across …
Validation of French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire among young Swiss males, and its relationship with substance use
This study main purpose was the validation of both French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire. The sample group comprised 5065 Swiss men from the "Cohort Study on Substance Use Risk Factors." Multigroup Confirmatory factor analysis showed that a three-factor model fits the data well, which substantiates the generalizability of Perceived Neighborhood Social Cohesion Questionnaire factor structure, regardle…
Age-relevance of person characteristics
The authors investigated normative beliefs about personality development. Young, middle-aged, and older adults indicated the age-relevance of 835 French adjectives by specifying person characteristics as typical for any age decade from 0 to 99 years. With this paradigm, the authors determined age-relevance (How typical is a characteristic for a given age decade?). Most characteristics were ascribed to young adulthood. The pattern differed across …
Factor Structure of Early Smoking Experiences and Associations with Smoking Behavior
The Early Smoking Experience (ESE) questionnaire is the most widely used questionnaire to assess initial subjective experiences of cigarette smoking. However, its factor structure is not clearly defined and can be perceived from two main standpoints: valence, or positive and negative experiences, and sensitivity to nicotine. This article explores the ESE's factor structure and determines which standpoint was more relevant. It compares two groups …
Health-risk behaviors and quality of life among young men
Use of electronic cigarettes among young Swiss men
Electronic cigarettes have been recently gaining popularity, but there is little information on the public health implications of vaping or on the profile of vapers. The status of e-cigarettes in Switzerland was established in 20091 and the sales of e-cigarettes containing nicotine have been prohibited. However, the import of limited quantities of nicotine containing e-cigarettes and refill liquids for personal use is allowed. In this study, we d…
Use of Neuroenhancement Drugs
Prevalence of ND use is low in Switzerland relative to other countries such as the United States. Patterns of ND use differed depending on academic status, suggesting that while college student ND users tended to do so rarely (probably to enhance cognitive abilities for exams), non-college male users used other NDs more frequently (probably to "get high")
Health impact of sport and exercise in emerging adult men
Video Gaming Disorder and Sport and Exercise in Emerging Adulthood
Among the negative consequences of video gaming disorder, decreased participation in sport and exercise has received little attention. This study aimed to assess the longitudinal association between video gaming disorder and the level of sport and exercise in emerging adult men. A questionnaire was completed at baseline and 15-month follow-up by a representative national sample of 4,933 respondents. The seven items of the Game Addiction Scale wer…
Peer pressure and alcohol use in young men
Concurrent Versus Simultaneous Use of Alcohol and Non-Medical Use of Prescription Drugs
This study investigated the difference between concurrent and simultaneous use of alcohol and non-medical use of prescription drugs (NMUPD) in relation to mental, social, and health issues. The 544 study participants of the Swiss ongoing Cohort Study on Substance Use Risk Factors (C-SURF) had a combined use of alcohol with NMUPD during the previous 12 months. Alcohol-related problems (i.e., dependence and consequences), as well as mental, social,…
Physical Activity and Snus
The study aimed at assessing the link between physical activity (PA), sports activity and snus use among young men in Switzerland. Data from the Cohort Study on Substance Use Risk Factors (C-SURF) were used to measure PA with the International Physical Activity Questionnaire and sports activity with a single item. Multivariate logistic regression analysis was conducted to measure the association between snus use, PA and sports activity. Similar m…
Drinking locations and alcohol-related harm
Are alcohol outlet densities strongly associated with alcohol‐related outcomes? A critical review of recent evidence
Socioeconomic status and substance use among Swiss young men
The relationship between SES and substance use was complex in this sample. Higher socioeconomic status was associated with more alcohol and other illicit drugs use, while lower socioeconomic status was related to more tobacco use. Education level and perceived family income may have different impacts on substance use and may vary by substance
Validation of French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire among young Swiss males, and its relationship with substance use
This study main purpose was the validation of both French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire. The sample group comprised 5065 Swiss men from the "Cohort Study on Substance Use Risk Factors." Multigroup Confirmatory factor analysis showed that a three-factor model fits the data well, which substantiates the generalizability of Perceived Neighborhood Social Cohesion Questionnaire factor structure, regardle…
Do sensation seeking and aggression traits moderate the association between peer influence and alcohol outcomes among young Swiss men
Peer influence is a strong predictor of drinking behaviors, yet not all young adults respond to its influence in the same way. This study aimed to identify young adults who are more vulnerable to peer influence by prospectively examining whether sensation seeking and aggression traits moderate the associations between peer influence and alcohol use and related consequences among young male drinkers. Participants (N = 4,624 participants) were youn…
Bidirectional Associations Between Self-Reported Gaming Disorder and Adult Attention Deficit Hyperactivity Disorder
Background: Gaming disorder (GD) has been shown to co-occur with attention deficit hyperactivity disorder (ADHD), yet few studies to date have investigated their longitudinal associations. Method: The sample included 5,067 young Swiss men (mean age was 20 years at wave 1 and 25 years at wave 3). Measures were the Game Addiction Scale and the Adult ADHD Self-Report Scale (6-item screener). Longitudinal associations were tested using autoregressive…
Comorbidity of Symptoms of Alcohol and Cannabis Use Disorders among a Population-Based Sample of Simultaneous Users. Insight from a Network Perspective
Research into comorbidity of alcohol and cannabis use disorders has resulted in inconsistent findings, especially among simultaneous users, who used alcohol and cannabis together on a single occasion. This study investigated the association of alcohol and cannabis use disorders among simultaneous users using a network perspective, which considers direct relationships between symptoms. We used a subset of simultaneous alcohol and cannabis users dr…
Longitudinal Associations between Life Satisfaction and Cannabis Use Initiation, Cessation, and Disorder Symptom Severity in a Cohort of Young Swiss Men
Motivations for cannabis use may include coping with negative well-being. Life satisfaction, a hallmark of subjective well-being, could play a role in cannabis use among young adults. This study aims to assess whether life satisfaction (SWLS) at age 21 is associated with cannabis initiation and cessation between the ages of 21 and 25, and with cannabis use severity (CUDIT) at age 25. Data were drawn from a cohort of young Swiss males. Association…
Interpretation of DSM-5 alcohol use disorder criteria in self-report surveys may change with age. A longitudinal analysis of young Swiss men
Background: General population surveys using self-reported measures show alcohol use disorder (AUD) to be most prevalent in young adulthood, but this may be due to misinterpretations of AUD criteria among inexperienced drinkers. The present study investigated changes in prevalence of criteria during emerging adulthood.Methods: 4924 young Swiss men were followed across three waves (age at wave 1 (w1): 20; w2: 21; w3: 25 years). We measured AUD acc…
Comparing Mental Health across Distinct Groups of Users of Psychedelics, MDMA, Psychostimulants, and Cannabis
Differences in mental health (MH) of users of distinct psychoactive substances have been shown. Both substance use (SU) and MH in users are influenced by stressful life events. This study compared MH parameters in distinct groups of substance users and evaluated the impact of stress factors on these outcomes. Data stem from the longitudinal Swiss Cohort Study on Substance Use Risk Factors (C-SURF) involving 4,475 young adult men. Distinct groups …
Are Changes in Personality Traits and Alcohol Use Associated? A Cohort Study Among Young Swiss Men
Objective: It is well known that certain personality traits are associated with alcohol use. Because less is known about it, we wished to investigate whether changes in alcohol use were longitudinally associated with changes in personality and in which direction the influence or causation might flow. Methods: Data came from the self-reported questionnaire answers of 5,125 young men at two time points during the Cohort study on Substance Use Risk …
The Association between Type and Intensity of Sport and Tobacco or Nicotine Use—A Cross-Sectional Study among Young Swiss Men
The objective of this study was to assess the association between tobacco/nicotine use and type and intensity of sport. Data were drawn from the second follow-up of the Cohort Study on Substance Use Risk Factors. Young Swiss men completed a questionnaire about tobacco/nicotine use (cigarette, vaping, snus, snuff), type and intensity of sport and other demographic and medical variables. Among the 5414 included participants (mean age 25.5), 3434 (6…
Sexual Minority Orientation Is Associated With Greater Psychological Impact Due to the Covid-19 Crisis—Evidence From a Longitudinal Cohort Study of Young Swiss Men
Background: The COVID-19 pandemic and its countermeasures may have had a significant impact on the psychological well-being of specific population subgroups. The present study investigated whether sexual minority men (defined here as attracted partly or exclusively to men) from an ongoing cohort study of young Swiss men experienced different psychological impacts, levels of substance use and addictive behaviors, and to which degree pre-existing v…
Changes in substance use and other reinforcing behaviours during the Covid-19 crisis in a general population cohort study of young Swiss men
Prosocialness in young males with substance and behavioral addictions
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