The rapid expansion in access to antiretroviral (ARV) drugs in sub-Saharan Africa from under 10,000 in 2000 to more than 8 million in 2011 has been enormous. Anticipating the impact of this expansion and future policy options requires identification of the impacts of access on individual behaviors that determine the course of the epidemic. This paper combines geocoded information about the timi...

We all know that smoking is bad for our health and that eating vegetables is good for it. Yet how bad and how good are they? Without a clear notion of threat and reward, it is that much harder to avoid a cigarette or to choke down a serving of broccoli. “I hate when someone tells me that something is risky,” says David Spiegelhalter, a professor of risk assessment at the University of Cambridge...

This paper examines the impact of maternal employment during a child's first 3 years and during adolescence on his or her decisions to engage in a range of risky behaviors: smoking cigarettes, drinking alcohol, using marijuana and other drugs, engaging in sex and committing crimes. Using data from the NLSY79 and its young adult supplement, we do not find strong evidence that mother's employment...

Alcoholism can be described as a disorder characterized by impulsive decision-making processes, wherein potential short-term appetitive outcomes of drinking (e.g., intoxication) are deemed more important than potential long-term aversive consequences of drinking (e.g., drunk-driving arrests). Separate but interrelated neurocognitive pathways to impulsive decision making exist - one reflected by...

OBJECTIVE "What do you want to be when you grow up?" is a simple, commonly asked question that might provide insight into adolescent well-being. Career aspirations might reflect an adolescent's sense of identity, hope for the future, and self-efficacy, all of which are critical to identifying at-risk youth and intervening on risky behaviors. However, there are no studies on whether career aspir...

Some people prefer to make risky decisions in their live, such as for avocation or even everyday decision making. Since Bauer first presented the conception of perceived risk in the decision making of consumer behavior, the role of perceived risk in product choice has attracted much attention and decisions such as choosing unknown objects have been known to be risky. Here in this study, we focu...

BACKGROUND Human immunodeficiency virus (HIV) is a public health challenge facing both developing and developed nations. Although injecting drug use is even the main route of HIV transmission in Iran, sexual route is rising gradually. Vulnerable women have been considered as important bridging population for driving HIV epidemics. To increase the access to vulnerable women, in 2007, 5 pilot cen...

3,537 men enrolling in 2007 for mandatory army recruitment procedures were assessed for the co-occurrence of risky licit substance use among risky cannabis users. Risky cannabis use was defined as at least twice weekly; risky alcohol use as 6+ drinks more than once/monthly, or more than 20 drinks per week; and risky tobacco use as daily smoking. Ninety-five percent of all risky cannabis users r...