Johannes Thrul

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INTRODUCTION AND AIMS Antecedents of smoking have been widely researched in studies with older adults. However, less is known about the smoking patterns and antecedents of smoking in young adult smokers. DESIGN AND METHODS In this study, we used ecological momentary assessment collected with an Internet-based survey instrument and used the participants'(More)
OBJECTIVE Binge drinking (also called heavy episodic drinking, risky single-occasion drinking etc.) is a major public health problem. This paper provides an overview of recently published evidence concerning the definition and measurement, prevalence rates, health impact, demographic and psychosocial correlates of, and interventions for, binge drinking. (More)
BACKGROUND Young adult smokers are a challenging group to engage in smoking cessation interventions. With wide reach and engagement among users, Facebook offers opportunity to engage young people in socially supportive communities for quitting smoking and sustaining abstinence. OBJECTIVE We developed and tested initial efficacy, engagement, and(More)
The protection motivation theory (PMT) is a well-known theory of behaviour change. This study tested the applicability of the sub-constructs of threat and coping appraisal in predicting adolescents' smoking-related behavioural intentions and smoking behaviour longitudinally. Adolescents (N = 494) aged 11-16 years and not currently smoking at baseline(More)
BACKGROUND In this paper we describe a novel Internet-based cell phone-optimized assessment technique (ICAT) to conduct an ecological momentary assessment (EMA) study. Participants could access the assessment instrument via the web browsers of their mobile phones. METHODS We report results from 92 young adult smokers (18-25 years old) who completed the(More)
BACKGROUND The European School Survey Project on Alcohol and Other Drugs (ESPAD) is a survey study that collects comparable data on substance use of students aged 15-16 years old in European countries. The present study aims at investigating the impact of school refusal to participate in ESPAD on substance use prevalence estimates. METHODS Data came from(More)
AIMS To investigate how gender composition of the drinking group affects young adults' alcohol consumption on weekend evenings over and above the effect of drinking-group size. DESIGN Using the internet-based cellphone-optimized assessment technique (ICAT), participants completed online questionnaires on their cell phones every hour from 8 p.m. to(More)
BACKGROUND Tobacco use remains the leading cause of premature morbidity and mortality in the United States. Young adults are less successful at quitting, use cessation treatment less often than smokers of other ages, and can be a challenge to retain in treatment. Social media, integrated into the lives of many young adults, represents a promising strategy(More)
BACKGROUND There is an implicit assumption that abstinence is the treatment goal of young smokers that deliberately participate in cessation interventions, but this may not always be the case. To gain information on subgroups of adolescent intervention participants, we compare participants who want to achieve smoking abstinence (Abst) with those stating a(More)
INTRODUCTION The use of electronic cigarettes or vape devices is increasing, and products are evolving rapidly. This study assessed retail vape shops in the San Francisco Bay Area to describe store characteristics, products offered, advertisements and health claims, as well as employees' perceptions of their customers' demographics, and practices to support(More)