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The paper introduces a variant of chain-referral sampling: respondent-driven sampling (RDS). This sampling method shows that methods based on network analysis can be combined with the statistical validity of standard probability sampling methods. In this sense, RDS appears to be a mathematical improvement of snowball sampling oriented to the study of hidden(More)
AIMS Reducing alcohol-related harm in young people is a major priority across Europe. Much alcohol use and associated harm in young people occurs in public drinking environments. This review aims to identity environmental factors in drinking establishements that are associated with increased alcohol consumption and associated harm and to understand the(More)
BACKGROUND This study examines whether authoritative parenting style (characterized by warmth and strictness) is more protective against adolescent substances use than authoritarian (strictness but not warmth), indulgent (warmth but not strictness) and neglectful (neither warmth nor strictness) parenting styles. Emergent research in diverse cultural(More)
Participating in nightlife it is a meaningful cultural activity for young people. Councils welcome a flourishing late-night entertainment industry. But there also problems related to the people involved (alcohol and drug abuse, violence, risky sex...) and to the recreational activity itself (noise, street drinking, vandalism...). Prevention intervention(More)
Within nightlife settings, youth violence places large burdens on both nightlife users and wider society. Internationally, research has identified risk factors for nightlife violence. However, few empirical studies have assessed differences in risk factors between genders. Here, a pan-European cross-sectional survey of 1,341 nightlife users aged 16 to 35(More)
BACKGROUND Previous studies exploring risk-taking behaviour on holiday are typically limited to single nationalities, confounding comparisons among countries. Here we examine the sexual behaviour of holidaymakers of three nationalities visiting Ibiza and Majorca. METHODS A comparative cross-sectional study design was used focusing on British, Spanish and(More)
AIMS To assess external validity characteristics of studies from two Cochrane Systematic Reviews of the effectiveness of universal family-based prevention of alcohol misuse in young people. METHODS Two reviewers used an a priori developed external validity rating form and independently assessed three external validity dimensions of generalizability,(More)
BACKGROUND Mediterranean lifestyle has long been hailed as protective against certain risk behaviours and diseases. Mediterranean drinking patterns of moderate alcohol consumption as part of daily life have often been assumed to protect young people from harmful alcohol consumption, in contrast to Northern European drinking patterns. Nightlife environments(More)
BACKGROUND Young people in European countries are experiencing high levels of alcohol and drug use and escalating levels of sexually transmitted infections. Individually these represent major public health priorities. Understanding of the association between sex and substance use, and specifically the strategic roles for which young people utilise(More)
Attachment is currently considered one of the major risk and/or protective factors for substance use in adolescence. This paper reviews the most important studies published in the last 30 years in this field, focusing on the conceptual and methodological issues that may be making it more difficult to draw conclusions about the impact of attachment –(More)