Psicothema was founded in Asturias (northern Spain) in 1989, and is published jointly by the Psychology Faculty of the University of Oviedo and the Psychological Association of the Principality of Asturias (Colegio Oficial de Psicólogos del Principado de Asturias).
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Psicothema, 2008. Vol. Vol. 20 (nº 4). 538-544

Subtyping of individuals undergoing treatment for cocaine dependence

Ana López Durán y Elisardo Becoña Iglesias

Universidad de Santiago de Compostela

To identify subtypes among individuals undergoing treatment for cocaine dependence, we evaluated 115 people with regard to sociodemographic, drug-related and psychopathological characteristics. Ten variables were preselected as the basis for a two-step cluster analysis with the aim of identifying subtypes. Two subtypes were identified (Type A, N= 37, and Type B, N= 78 subjects). The variable that best discriminated the two subtypes was occasional heroin consumption. In addition, there were significant differences in mean age, mean age at onset of cocaine consumption, mean number of years consuming cocaine, and principal route of ingestion. None of the psychopathological variables considered significantly differentiated the two groups.

Subtipos entre las personas con dependencia de la cocaína en tratamiento. Evaluamos en 115 personas con dependencia de la cocaína, las características sociodemográficas, aspectos relacionados con el consumo de drogas y determinadas características psicopatológicas con el objetivo de identificar la existencia de subtipos entre las personas que están en tratamiento por dependencia de la cocaína. Seleccionamos diez variables para realizar un análisis de conglomerados en dos fases, identificándose dos subtipos (A, 37 sujetos, y B, 78 sujetos). La variable más importante para diferenciar entre los dos subtipos es el consumo de heroína alguna vez en la vida. Además, hay diferencias significativas en la media de edad, en la edad de inicio en el consumo de cocaína, en la media de años de consumo de cocaína y en la vía principal de consumo. Ninguna de las variables psicopatológicas utilizadas en el análisis resultó significativa para diferenciar entre los dos grupos.


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