The role of human papillomavirus (HPV)-related stigma on HPV vaccine decision-making among college males

ABSTRACT

Objective: The goals of the present study are (1) to identify sociodemographic and psychosocial predictors of human papillomavirus (HPV)-related stigma and (2) to examine the relationship between HPV-related stigma in predicting HPV vaccine decision-making among college males. Participants: Six hundred and eighty college males aged 18–26 from 3 Canadian universities were recruited from September 2013 to April 2014. Methods: Participants completed a self-report survey assessing HPV-related stigma, psychosocial predictors of HPV-related stigma, and HPV vaccine decision-making. The results were analyzed using variance analyses and linear regressions. Results: Ethnicity, province of residence, and perceived severity of HPV were found to significantly influence HPV-related stigma. In addition, HPV-related stigma was higher in those unaware of the availability of the HPV vaccine for males. Conclusions: Promotion efforts should concentrate on Asian minorities and should avoid HPV severity messaging, as these may lead to higher HPV-related stigma, which in turn may act as a barrier to vaccination.     

Auxiliary variables for Bayesian inference in multi-class queueing networks

Queueing networks describe complex stochastic systems of both theoretical and practical interest. They provide the means to assess alterations, diagnose poor performance and evaluate robustness across sets of interconnected resources. In the present paper, we focus on the underlying continuous-time Markov chains induced by these networks, and we present a flexible method for drawing parameter inference in multi-class Markovian cases with switching and different service disciplines. The approach is directed towards the inferential problem with missing data, where transition paths of individual tasks among the queues are often unknown. The paper introduces a slice sampling technique with mappings to the measurable space of task transitions between the service stations. This can address time and tractability issues in computational procedures, handle prior system knowledge and overcome common restrictions on service rates across existing inferential frameworks. Finally, the proposed algorithm is validated on synthetic data and applied to a real data set, obtained from a service delivery tasking tool implemented in two university hospitals.     

Safety implications of infotainment system use in naturalistic driving

The use of a radio while driving has long been considered a "threshold" of distraction that is socially acceptable although it may be a factor in some crashes and near crashes. This "social acceptance" has prompted the use of radio tasks, specifically radio tuning, as "references" that should not be exceeded by other secondary and tertiary tasks that make their way into the vehicle. As new functions make their way into vehicle radios (or more advanced infotainment systems), however, it is possible that radio tasks may become distracting to a level that surpasses current driver expectations. This investigation examines the naturalistic usage of several advanced infotainment systems and examines whether usage is associated first with changes in near crash occurrence and second with changes in driving behavior. Little association was found with near crashes: 5 of 46 near crash events observed in the dataset exhibited infotainment system use. Drivers involved in infotainment system use during near crashes, however, did exhibit distinct glance behaviors, generally suggesting lower levels of awareness about their driving environment. Initial analyses of a larger dataset appear to confirm these findings.     

New perspectives in historical demography in Latin America

The author outlines developments in the field of historical demography in Latin America. Methodological and theoretical aspects are evaluated, with a focus on the study of aggregate vital series and in-depth analysis of census data. The importance of integrating demographic analysis with social and economic history is emphasized.     

Suicide prevention on college campuses: What works and what are the existing gaps? A systematic review and meta-analysis

Abstract

Objective: To examine the effects of universal and targeted suicide prevention programs on relevant outcomes in college campuses. Methods: College suicide prevention programs published from 2009 to 2018 were assessed on outcomes including knowledge, skills, self-efficacy, suicidal ideation, and suicidal behaviors. Effects of the interventions on outcome variables with sufficient studies to warrant meta-analysis (ie, knowledge, skills, and self-efficacy) were meta-analyzed. Studies reporting on the remaining outcomes (ie, suicidal ideation and behaviors) were systematically reviewed. Results: Significant increases in suicide prevention knowledge, skills, and self-efficacy were observed in universal prevention interventions that typically employed gatekeeper prevention strategies. Evidence of reductions in suicidal ideation and behaviors was observed across targeted suicide prevention programs for at-risk students. Conclusion: Prevention programs are beneficial for training those likely to come in contact with people endorsing suicidality, but further research is needed to show that suicide interventions can consistently have significant effects on suicidal students as well.     

Linguistic Acculturation and Context on Self-Esteem: Hispanic Youth Between Cultures

Immigrant adolescents must negotiate two cultures: the host culture and their native culture. This study explored how self-esteem is moderated by the effect of linguistic acculturation and context. An ordinary least-squares regression model, controlling for fixed effects, produced results supporting the hypothesis that linguistic acculturation moderates the effect of context on self-esteem. The self-esteem of Hispanic adolescents who were less linguistically acculturated was found to be more favorable when with family than with friends and the reverse was found for the more linguistically acculturated participants. Adolescents in the middle of the linguistic acculturation process had the widest variance in self-esteem between times they were with their families and times in other contexts; they experienced more positive self-esteem with anyone but family. Findings underscore the need to better understand the complex process of linguistic acculturation and its effects on self-esteem. This research also demonstrates the practical utility of a fixed-effects model for reducing bias in cross-cultural research.     

Comparative assessment of analytical approaches to quantify the risk for introduction of rare animal diseases: the example of avian influenza in Spain

Trade of animals and animal products imposes an uncertain and variable risk for exotic animal diseases introduction into importing countries. Risk analysis provides importing countries with an objective, transparent, and internationally accepted method for assessing that risk. Over the last decades, European Union countries have conducted probabilistic risk assessments quite frequently to quantify the risk for rare animal diseases introduction into their territories. Most probabilistic animal health risk assessments have been typically classified into one-level and multilevel binomial models. One-level models are more simple than multilevel models because they assume that animals or products originate from one single population. However, it is unknown whether such simplification may result in substantially different results compared to those obtained through the use of multilevel models. Here, data used on a probabilistic multilevel binomial model formulated to assess the risk for highly pathogenic avian influenza introduction into Spain were reanalyzed using a one-level binomial model and their outcomes were compared. An alternative ordinal model is also proposed here, which makes use of simpler assumptions and less information compared to those required by traditional one-level and multilevel approaches. Results suggest that, at least under certain circumstances, results of the one-level and ordinal approaches are similar to those obtained using multilevel models. Consequently, we argue that, when data are insufficient to run traditional probabilistic models, the ordinal approach presented here may be a suitable alternative to rank exporting countries in terms of the risk that they impose for the spread of rare animal diseases into disease-free countries.     

Couples' Views about Planning Fertility in the Philippines*

Abstract This research examines Filipino couples' attitudes toward the occurrence and timing of their most recent pregnancies. Differences between processes operating in rural and urban areas are highlighted. Specific topics include the role of couples' fertility preferences in predicting the intention status of pregnancies, the effect of personal agency in decision making about contraception and childbearing, and whether women who are better able to communicate with their husbands about sex and related matters are more able than other women to avoid unintended births. These topics are explored through survey data and in‐depth interviews.