Joshua H. West

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BACKGROUND The introduction of Apple's iPhone provided a platform for developers to design third-party apps, which greatly expanded the functionality and utility of mobile devices for public health. OBJECTIVE This study provides an overview of the developers' written descriptions of health and fitness apps and appraises each app's potential for(More)
BACKGROUND Adderall is the most commonly abused prescription stimulant among college students. Social media provides a real-time avenue for monitoring public health, specifically for this population. OBJECTIVE This study explores discussion of Adderall on Twitter to identify variations in volume around college exam periods, differences across sets of(More)
OBJECTIVE To quantify the presence of health behavior theory constructs in iPhone apps targeting physical activity. METHODS This study used a content analysis of 127 apps from Apple's (App Store) Health & Fitness category. Coders downloaded the apps and then used an established theory-based instrument to rate each app's inclusion of theoretical constructs(More)
OBJECTIVES To determine if there is an association between psychosocial distress, health-risk behaviors and 12-month suicidal ideation among sub-Saharan African adolescents. METHODS Subjects included a cross-national sample of adolescents (N = 25,568) representing 7 African countries who completed the Global School-based Student Health Survey (GSHS). (More)
BACKGROUND Gamification has been a predominant focus of the health app industry in recent years. However, to our knowledge, there has yet to be a review of gamification elements in relation to health behavior constructs, or insight into the true proliferation of gamification in health apps. OBJECTIVE The objective of this study was to identify the extent(More)
BACKGROUND Sixty percent of Internet users report using the Internet to look for health information. Social media sites are emerging as a potential source for online health information. However, little is known about how people use social media for such purposes. OBJECTIVES The purpose of this study was two-fold: (1) to establish the frequency of various(More)
BACKGROUND Suicide is a leading cause of death in the United States. Social media such as Twitter is an emerging surveillance tool that may assist researchers in tracking suicide risk factors in real time. AIMS To identify suicide-related risk factors through Twitter conversations by matching on geographic suicide rates from vital statistics data. (More)
Despite the expanding use of social media, little has been published about its appropriate role in health promotion, and even less has been written about evaluation. The purpose of this article is threefold: (a) outline purposes for social media in health promotion, (b) identify potential key performance indicators associated with these purposes, and (c)(More)
Despite decades of research surrounding determinants of alcohol and tobacco (A&T) use among adolescents, built environment influences have only recently been explored. This study used ordinal regression on 205 Latino adolescents to explore the influence of the built environment (proximity to A&T retailers) on A&T use, while controlling for recognized social(More)
BACKGROUND Twitter provides various types of location data, including exact Global Positioning System (GPS) coordinates, which could be used for infoveillance and infodemiology (ie, the study and monitoring of online health information), health communication, and interventions. Despite its potential, Twitter location information is not well understood or(More)