نتایج جستجو برای: marijuana
تعداد نتایج: 13493 فیلتر نتایج به سال:
C annabis (derived from the ubiquitous plant, Cannabis sativa, and also known as marijuana) is the most widely used illicit drug worldwide, as well as the second most commonly smoked substance after tobacco, with an estimated 166 million users (3.9% of 15–64 yr olds) [1]. Its wide popularity is due to the euphoric effects of its major psychoactive ingredient, D-tetrahydrocannabinol (THC). Since...
AIMS To examine changes in marijuana use in a metropolitan region and a provincial/rural region in New Zealand between 1990 and 1998. METHODS Two random sample surveys of people aged 15 -45 years were carried out in Auckland and Bay of Plenty regions in 1990 and 1998, using a computer-assisted telephone interviewing system. RESULTS Use of marijuana in the last twelve months increased in the...
BACKGROUND Marijuana is seeing increased therapeutic use, and is the world's third most-popular recreational drug following alcohol and tobacco. This widening use poses increased exposure to potentially toxic combustion by-products from marijuana smoke and the potential for public health concerns. OBJECTIVES To compare urinary metabolites of polycyclic aromatic hydrocarbons (PAHs) and volatil...
BACKGROUND AND OBJECTIVES The purpose of this study is to extend what is known about medical marijuana and non-medical marijuana users who visit the emergency department (ED) by exploring differences in their sociodemographic characteristics and their drug-related problem severity. METHODS Of 292 consecutively enrolled exclusive marijuana-only users visiting the ED for any reason, 37% (n = 10...
In adults, studies examining the long-lasting cognitive effects of marijuana use demonstrate subtle deficits in attention, executive function, and memory. Because neuromaturation continues through adolescence, these results cannot necessarily generalize to adolescent marijuana users. The goal of this study was to examine neuropsychological functioning in abstinent marijuana using and demographi...
OBJECTIVES To examine prevalence and patterns of smoked marijuana and perceived benefit and to assess demographic and clinical factors associated with marijuana use among HIV patients in a public health care setting. METHODS Participants (n = 252) were recruited via consecutive sampling in public health care clinics. Structured interviews assessed patterns of recent marijuana use, including i...
BACKGROUND Marijuana contains carcinogens similar to tobacco smoke and has been suggested by relatively small studies to increase the risk of head and neck cancer (HNC). Because tobacco is a major risk factor for HNC, large studies with substantial numbers of never tobacco users could help to clarify whether marijuana smoking is independently associated with HNC risk. METHODS We pooled self-r...
A random-sample, anonymous survey of the members of the American Society of Clinical Oncology (ASCO) was conducted in spring 1990 measuring the attitudes and experiences of American oncologists concerning the antiemetic use of marijuana in cancer chemotherapy patients. The survey was mailed to about one third (N = 2,430) of all United States-based ASCO members and yielded a response rate of 43%...
Marijuana use is legal in two states and additional states are considering legalization. Approximately 18 million Americans are current marijuana users. There is currently no consensus on whether marijuana use is associated with cancer risk. Our objective is to review the epidemiologic studies on this possible association. We identified 34 epidemiologic studies on upper aerodigestive tract canc...
INTRODUCTION Over the last decade, the use of medical marijuana has expanded dramatically; it is now permitted in 16 states and the District of Columbia. Our study of family physicians in Colorado is the first to gather information about physician attitudes toward this evolving practice. METHODS We distributed an anonymous web-based electronic survey to the 1727 members of the Colorado Academ...
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