6533b7d2fe1ef96bd125ed02
RESEARCH PRODUCT
Exploratory Factor Analysis and Validation Study of the Lifetime Severity Index for Cocaine, Spanish Version (LSI-C-Spanish)
Rafael Aleixandre-benaventM. Castellano-gómezC.c. Morales-manriqueJuan Carlos Valderrama-zuriánsubject
AdultMaleValidation studymedicine.medical_specialtyIndex (economics)AdolescentPsychometricsPsychometricsPopulation DynamicsSeverity of Illness IndexCocaine-Related DisordersQuality of lifeSeverity of illnessmedicineHumansPsychiatryLanguagePsychiatric Status Rating ScalesDiscriminant validityReproducibility of ResultsSpanish versionMiddle AgedExploratory factor analysisHospitalizationPsychiatry and Mental healthSpainQuality of LifeFemaleSubstance Abuse Treatment CentersDrug OverdoseFactor Analysis StatisticalPsychologyDemographydescription
The purpose of the study was to do an exploratory factor analysis and to examine the criterion-related and discriminant validity of the Lifetime Severity Index for Cocaine (LSI-C), Spanish version. A sample of 171 outpatients from 10 drug centers in Spain participated in the study. We conducted the factor analysis with orthogonal rotation and examined correlations between the LSI-C total score and criterion variables as well as the score obtained by a quality of life measure. The factor analysis revealed 2 principal factors that explain 65.8% of the variance. Lower LSI-C scores were associated with taking medication, receiving social help, using cocaine fewer than 30 times during the previous 6 months, and with better scores on quality of life measures. Higher LSI-C scores were associated with unstable housing, overdose, hospitalization, cocaine consumption more than 100 times during the previous 6 months, and more years of drug consumption. The LSI-C Spanish version shows acceptable criterion-related and discriminant validity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-06-15 | Journal of Nervous & Mental Disease |