The Abbreviated Self Completion Teen-Addiction Severity Index (ASC T-ASI)

Reckers-Droog, Vivian; Roijen, Leona Hakkaart-van; Kaminer, Yifrah

doi:10.1007/978-3-030-67928-6_178-1

Cited by 3 publications

(3 citation statements)

References 31 publications

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“…The need for such measures in the context of substance abuse treatment was noted before [ 39 ]. The ASC T-ASI is an adaptation of the frequently used T-ASI [ 27 ], which may contribute to its acceptance, validity, and feasibility of implementation [ 16 , 40 ]. We used a two stage-design, starting with an elaborate pilot study, followed by a large main study.…”

Section: Discussionmentioning

confidence: 99%

“…The results indicated that the domains substance use, mental health, justice, and family were most important in our sample, representative of the Dutch population (aged 18–65 years) in terms of age, sex, and education. With these tariffs, the ASC T-ASI can be seen as a validated [ 16 , 40 ], preference-based outcome measure with a scoring system ranging from 0 (worst state described with the instrument) and 1 (best state described with the instrument).…”

Section: Discussionmentioning

confidence: 99%

“…Such overlap could occur with common measures like the EQ-5D [ 16 ] or with cost components of economic evaluations. This, as well as the validity of the ASC T-ASI in different settings, needs to be investigated further in future research [ 16 , 40 ]. Furthermore, though the ASC T-ASI is developed in the context of systemic family interventions, future studies may consider its application in a broader context of youth mental health interventions.…”

Section: Discussionmentioning

confidence: 99%

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Obtaining preference scores for an abbreviated self-completion version of the Teen-Addiction Severity Index (ASC T-ASI) to value therapy outcomes of systemic family interventions: a discrete choice experiment

Schawo,

Hoefman,

Reckers-Droog

et al. 2023

Eur J Health Econ

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Background Systemic family interventions for adolescents with problems of substance use and/or delinquency are increasingly focused subject of economic evaluations. Treatment effects go beyond improvements in commonly measured health-related quality of life (HRQOL). The Teen-Addiction Severity Index (T-ASI) was identified as capable of capturing these broad outcomes. However, it lacks preference-based scores. An abbreviated self-completion version (ASC T-ASI) was created and validated, covering the T-ASI domains substance use, school, work, family, social relationships, justice, and mental health. This study aimed to obtain societal preference scores for the ASC T-ASI. Methods Preferences were elicited in a sample of the Dutch general adult population (n = 1500), using a web-based Discrete Choice Experiment. Choice tasks included two unlabeled alternatives with attributes and levels corresponding to the domains and levels of the ASC T-ASI. A pilot study (n = 106) informed priors, optimal presentation, and number of choice tasks applied in the main study. Data were analyzed using a mixed multinomial logit model. Results Preference scores were logically ordered, with lower scores for worse ASC T-ASI states. Scores were most influenced by reductions in problems concerning the domains substance use, mental health, justice, and family. Tariffs were calculated for each ASC T-ASI state, ranging from 0 (worst situation) to 1 (best situation). Conclusions The tariffs enable preference-based assessments of the broad effects of systemic family interventions for adolescents with problems of substance use and/or delinquency. The outcome reflects addiction-related rather than health-related utility and can be used next to generic HRQOL instruments in relevant economic evaluations. Given the source used for the preferences, interpretations and valuation of scores require attention.

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