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The consumption of substances with addictive potential is a relevant health problem. In Mexico, the abuse is spreading and the use of services is unfrequent. To extend the offer and accessibility to treatment means to increase the coverage and to guarantee that efficient and effective models are used to treat the patients. The aim of the paper was to learn what has been investigated in this respect; a systematic review of the studies was undertaken to evaluate the treatment research through clinical trials. Methods A review of the published literature from 1980 to 2010 in databases and specialized documentation centers was undertaken. Reports of clinical trials to evaluate interventions for the consumption of alcohol, tobacco and drugs were included. The criteria proposed by CONSORT were used as indicators. Results Two hundred and twenty publications were located on treatment in Mexico, of which only 26 (11.8 %) corresponded to clinical trials to evaluate the impact of different interventions. The most used type of treatment was the cognitive-behavioral brief one, followed by its combination with therapy of replacement, pharmacological therapy and individual psychotherapy or group therapy. Trials also included evaluation of motivational brief therapy, the program «La familia enseñante» (teaching family) and psychotherapy, as well as the therapy centered on solutions. Discussion Most of the clinical trials localized do not comply with the criteria or do it partially. Additionally they have short scopes due to the limited size of the samples. The results reveal that the reports published of investigations are very scanty to evaluate programs of treatment. There is a need to implement programs of treatment directed to specific populations and to the use of different types of drugs, and to evaluate the interventions. [ABSTRACT FROM AUTHOR]

In Mexico, addictions among the middle- and high-school student population have been widely studied, which has shed light on certain risks associated with alcohol abuse, including a higher probability of experiencing with other drugs particularly in the case of males-, engaging in risky sexual practices and attempting suicide, a situation that is twice as common among those who drink and drive. Nevertheless, research on alcohol abuse among the university population has been less explored, particularly as regards the identification of the variables that predict excessive alcohol consumption. A review of the international literature on factors associated with alcohol abuse in this type of population indicates that it is among university students that high or explosive consumption tends to be largest, even among young people who do not attend school, and that the period of higher consumption is between 17 and 21 years of age. Other factors that have been identified include exposure to negative life events, inappropriate coping styles, personality variables, resorting to alcohol to reduce tension, and environmental and socio—cognitive variables, foremost among which arc expectations of the positive effects of alcohol. These expectations not only predict alcohol consumption but also differentiate between problem and non-problem drinking. For example, while social drinkers tend to harbor more social expectations when drinking alcohol, excessive drinkers expect alcohol to increase their aggressive and social behavior, while reducing stress or tension. This paper seeks to evaluate the impact of expectations regarding alcohol, in predicting alcohol abuse among students at public and private universities in Mexico City. Indicators of alcohol abuse include consumption of five or more drinks on each occasion, drunkenness during the past month and year as well as associated problems. The study also seeks to determine the way in which sub-scales of expectations interact with each other. [ABSTRACT FROM AUTHOR]