The effect of sample selection on the distinction between alcohol abuse and dependence

  • Martin Steppan IFT Institut für Therapieforschung
  • Daniela Piontek IFT Institut für Therapieforschung
  • Ludwig Kraus IFT Institut für Therapieforschung; Centre for Social Research on Alcohol and Drugs (SoRAD)
Keywords: alcohol use disorders, DSM-IV, dimensionality analysis, factor analysis, latent class analysis, latent class factor analysis

Abstract

Steppan, M., Piontek, D., & Kraus, L. (2014). The effect of sample selection on the distinction between alcohol abuse and dependence. The International Journal Of Alcohol And Drug Research, 3(2), 159-168. doi:http://dx.doi.org/10.7895/ijadr.v3i2.100

Aim: The effect of sample selection on the dimensionality of DSM-IV alcohol and dependence (AUD) criteria was tested applying different methods.

Sample: Data from the 2006 German Epidemiological Survey of Substance Abuse (ESA) were used. A mixed-mode design was used (self-administered questionnaires and telephone interviews), and 7,912 individuals, aged 18 to 64 years, participated. The response rate was 45%. Alcohol abuse and dependence were assessed according to DSM-IV, based on the Munich Composite International Diagnostic Interview (M-CIDI). Inter-item correlations, Confirmatory Factor Analysis (CFA), and Latent Class Analysis (LCA) were applied to the total sample (unrestricted sample, URS) and a subsample of individuals with at least one endorsed criterion (restricted sample, RS). Latent Class Factor Analysis (LCFA) was performed using the RS, including covariates (age, sex, education).

Findings: The mean inter-item correlation was higher in the URS than in the RS. When individuals without criterion endorsement were excluded, factor analyses resulted in more dimensions. In the RS, LCA yielded an interaction between abuse, dependence and class membership. The LCFA identified two dimensions and five classes corresponding to abuse and dependence.

Conclusions: Sample selection has a critical effect on dimensionality analyses. When individuals who do not endorse a single criterion are excluded, the bi-axial factor structure of the DSM-IV (abuse and dependence) can be supported. However, there is also evidence that a further diagnostic category should be included or that the threshold for dependence should be lowered.

Author Biographies

Martin Steppan, IFT Institut für Therapieforschung
Department of Clinical Epidemiology, IFT Institut für Therapieforschung, München, Germany
Daniela Piontek, IFT Institut für Therapieforschung
IFT Institut für Therapieforschung, München, Germany
Ludwig Kraus, IFT Institut für Therapieforschung; Centre for Social Research on Alcohol and Drugs (SoRAD)

IFT Institut für Therapieforschung, München, Germany

Centre for Social Research on Alcohol and Drugs (SoRAD), Stockholm University, Stockholm, Sweden

Published
2014-07-24
How to Cite
Steppan, M., Piontek, D., & Kraus, L. (2014). The effect of sample selection on the distinction between alcohol abuse and dependence. The International Journal of Alcohol and Drug Research, 3(2), 159-168. https://doi.org/10.7895/ijadr.v3i2.100
Section
Papers