Confirmatory factor analysis of the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) in community health center patients

The eleven-item Alcohol, Smoking and Substance Involvement Screening Test (ASSIST-11): Cross-cultural psychometric evaluation across 42 countries

The Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) is an instrument to screen substance-use-related health risks. However, little is known whether the ASSIST could be further shortened while remaining psychometrically sound across different countries, languages, gender identities, and sexual-orientation-based groups. The study aimed to validate a shortened 11-item ASSIST (ASSIST-11). Using the International Sex Survey data, 82,243 participants (M age = 32.39 years) across 42 countries and 26 languages completed questions from the ASSIST-11 regarding gender identity, sexual orientation, and other information. Confirmatory factor analysis (CFA) and multigroup CFA (MGCFA) evaluated the ASSIST-11's structure and tested measurement invariance across groups. Cronbach's α and McDonald's ω were used to examine the internal consistency. Cohen's d and independent t-tests were used to examine known-group validity. The ASSIST-11 was unidimensional across countries, languages, age groups, gender identities (i.e., men, women, and gender-diverse individuals), and sexual orientations (i.e., heterosexual and sexual minority individuals). Cronbach's α was 0.63 and McDonald's ω was 0.68 for the ASSIST-11. Known-group validity was supported by Cohen's d (range between 0.23 and 0.40) with significant differences (p-values<0.001). The ASSIST-11 is a modified instrument with a unidimensional factor structure across different languages, age groups, countries, gender identities, and sexual orientations. The low internal consistency of the ASSIST-11 might be acceptable as it assesses a broad concept (i.e., use of several different substances). Healthcare providers and researchers may use the ASSIST-11 to quickly assess substance-use information from general populations and evaluate the need to follow up with more detailed questions about substance use.

Identifying available addictive disorder screening tests validated in primary care: A systematic review

BACKGROUND

Substance use disorders and non-substance addictive behaviors are major, growing health concerns. Efficient screening primary care settings encouraged but its widespread implementation is restricted without an appropriate screening approach for clinical practice or guidance for practitioners choose an appropriate screening test. This study aims to identify addictive disorder screening tests which are validated in primary care and suggest steps to help practitioners select the appropriate test.

METHOD

A systematic review of the literature through Pubmed, PsycINFO and The Cochrane Library was performed from database inception to December 21, 2020. The search strategy included three research topics: screening, addictive disorders, and primary care. Selection criteria included published studies evaluating the validity of an addictive disorder screening test in primary care settings.

RESULTS

8638 papers were selected, and 50 studies were included. Seventeen questionnaires validated in primary care covered the main substance use disorders, but none screened for non-substance addictive behaviors. Tests such as ASSIST, S2BI, SUBS and TAPS screen for a variety of substance use disorders while others such as TICS and CAGE-AID only have a few questions to improve feasibility. However, some shorter tests had weaker psychometric properties.

CONCLUSIONS

Seventeen addictive disorder screening tests validated in primary care are available. The feasibility and acceptability in primary care of the shorter tests needs to be assessed. A transversal screening test, adapted to the constraints of primary care, that enables clinicians to detect substance use disorders and non-substance addictive behaviors is needed.