Development and validation of the Japanese version of the problem gambling severity index.
Gambling
Japan
PGSI
Prevalence
Problem gambling
Problem gambling severity index
Journal
Addictive behaviors
ISSN: 1873-6327
Titre abrégé: Addict Behav
Pays: England
ID NLM: 7603486
Informations de publication
Date de publication:
11 2019
11 2019
Historique:
received:
17
03
2019
revised:
08
05
2019
accepted:
11
05
2019
pubmed:
16
8
2019
medline:
29
10
2020
entrez:
16
8
2019
Statut:
ppublish
Résumé
The Problem Gambling Severity Index (PGSI) has been the most frequently used instrument for prevalence studies of problem gambling in the 2010s. However, the Japanese version of the PGSI has yet to be developed. To develop the Japanese version of the PGSI and to investigate its reliability and validity. We translated and back-translated the original version of the PGSI into Japanese. The author of the original PGSI confirmed the semantic equivalence between the original PGSI and its Japanese version. We examined the reliability and validity of the Japanese version of the PGSI using data from a nationwide prevalence study of problem gambling conducted in Japan in 2017. Usable responses were obtained from 5365 residents. The PGSI had excellent internal consistency (Cronbach's alpha coefficient: 0.89) and moderate test-retest reliability after 45-60 days (intraclass coefficient: 0.54). Exploratory factor analysis revealed the unidimensionality of the PGSI. As for criterion validity, using the diagnosis of gambling disorder in DSM-5 as a reference standard, the stratum specific likelihood ratios of the PGSI score of 0 = non-problem; 1-2 = low risk; 3-7 = moderate risk; and 8-27 = problem gambling were 0.00; 0.68 (95% confidence interval: 0.21 to 2.22); 8.71 (5.2 to 14.5); and 67.9 (35.6 to 129.5) respectively. We recommend including the PGSI in future prevalence studies of problem gambling in Japan.
Sections du résumé
BACKGROUND
The Problem Gambling Severity Index (PGSI) has been the most frequently used instrument for prevalence studies of problem gambling in the 2010s. However, the Japanese version of the PGSI has yet to be developed.
OBJECTIVE
To develop the Japanese version of the PGSI and to investigate its reliability and validity.
MATERIALS AND METHODS
We translated and back-translated the original version of the PGSI into Japanese. The author of the original PGSI confirmed the semantic equivalence between the original PGSI and its Japanese version. We examined the reliability and validity of the Japanese version of the PGSI using data from a nationwide prevalence study of problem gambling conducted in Japan in 2017.
RESULTS
Usable responses were obtained from 5365 residents. The PGSI had excellent internal consistency (Cronbach's alpha coefficient: 0.89) and moderate test-retest reliability after 45-60 days (intraclass coefficient: 0.54). Exploratory factor analysis revealed the unidimensionality of the PGSI. As for criterion validity, using the diagnosis of gambling disorder in DSM-5 as a reference standard, the stratum specific likelihood ratios of the PGSI score of 0 = non-problem; 1-2 = low risk; 3-7 = moderate risk; and 8-27 = problem gambling were 0.00; 0.68 (95% confidence interval: 0.21 to 2.22); 8.71 (5.2 to 14.5); and 67.9 (35.6 to 129.5) respectively.
CONCLUSIONS
We recommend including the PGSI in future prevalence studies of problem gambling in Japan.
Identifiants
pubmed: 31415969
pii: S0306-4603(19)30312-0
doi: 10.1016/j.addbeh.2019.05.011
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Validation Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
105987Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.