BACKGROUND Many patients do not adhere to treatment because they cannot afford their prescription medications, putting them at increased risk of adverse health outcomes. We determined the prevalence of cost-related nonadherence and investigated its associated characteristics, including whether a person has drug insurance. METHODS Using data from the 2007 Canada Community Health Survey, we ana...

To determine whether medication use differs by cognitive status among community dwelling elderly, a survey was made of a stratified random sample of 4110 black and white participants, aged 65 or older from the Duke Established Populations for Epidemiologic Studies of the Elderly in five adjacent urban and rural counties in the Piedmont area of North Carolina. Main outcome measures were usage of...

Multidrug use is well documented among nonmedical users of prescription stimulants. We sought to provide insight into the drug use patterns of those reporting nonmedical use of prescription attention-deficit hyperactivity disorder (ADHD) stimulants in an attempt to discern whether such use is a first step in a pattern of drug-abusing behavior or, conversely, is a later development accompanied o...

Adolescence represents a vulnerable time for the development of both drug use/abuse and mental illness. Although previous research has substantiated a relationship between drug use and suicidal behavior, little research has examined this relationship with non-medical prescription drug use. Given the growing prevalence of non-medical prescription drug use (NMPDU) among adolescents, this study ex...

The use of multiple medications is becoming more common, with a correspondingly increased risk of untoward effects and drug-related morbidity and mortality. We aimed at estimating the prevalence of prescription of relevant potentially interacting drugs and at evaluating possible predictors of potentially interacting drug exposure. We retrospectively analyzed data on prescriptions dispensed from...

This study examines the nature, extent and consequences of prescription drug abuse among 143 ecstasy users in Miami. Participants were recruited through nightclub and college campus outreach, and through respondent referrals. Instrumentation included the Risk Behavior Assessment, Substance Abuse Module and Center for Epidemiological Studies Depression Scale. Median age was 23, 42% were female a...

CONTEXT Cost-sharing in US prescription drug coverage plans for elderly persons varies widely. Evaluation of prescription drug use among elderly persons by type of health insurance could provide useful information for designing a Medicare drug program. OBJECTIVE To determine use of effective cardiovascular drugs among elderly persons with coronary heart disease (CHD) by type of health insuran...