Smart R G
Bol Oficina Sanit Panam. 1989 Dec;107(6):495-503.
Two long-term surveys of drug use have been carried out in Ontario, Canada--one involving middle- and high-school students, and the other adults in the general population. These studies revealed that use of tobacco and alcohol is common and that Cannabis is the most widely used illicit drug by both the students and adults (15.9% and 9.5%, respectively, in 1987). Use of other illicit drugs is much less common. The trend data from 1977 to 1987 show a decrease in all drug use among students and a basically stable pattern among adults, with the exception of an upward trend in cocaine use. A study of adult cocaine users in the community found that half had experienced intense cravings for cocaine and other adverse effects. Demographic information was also gathered that made it possible to outline the most common characteristics of Cannabis and cocaine users.
加拿大安大略省开展了两项关于药物使用的长期调查——一项针对中学生和高中生，另一项针对普通人群中的成年人。这些研究表明，烟草和酒精的使用很普遍，大麻是学生和成年人使用最广泛的非法药物（1987年分别为15.9%和9.5%）。其他非法药物的使用则要少得多。1977年至1987年的趋势数据显示，学生中所有药物的使用都有所减少，成年人中的情况基本稳定，但可卡因的使用呈上升趋势。一项针对社区成年可卡因使用者的研究发现，一半的使用者曾经历过对可卡因的强烈渴望及其他不良反应。还收集了人口统计信息，从而能够勾勒出大麻和可卡因使用者最常见的特征。
