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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Pathological gambling subtypes: A comparison of treatment-seeking and non-treatment-seeking samples from Brazil and Canada

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Author(s):
Lobo, D. S. S. [1, 2, 3] ; Quilty, L. C. [4] ; Martins, S. S. [5] ; Tavares, H. [6] ; Vallada, H. [7] ; Kennedy, J. L. [1, 2] ; Bagby, R. M. [2, 8, 9]
Total Authors: 7
Affiliation:
[1] Ctr Addict & Mental Hlth, Neurogenet Lab, Toronto, ON M5S 2S1 - Canada
[2] Univ Toronto, Dept Psychiat, Toronto, ON M5T 1R8 - Canada
[3] Ctr Addict & Mental Hlth, Addict Program, Toronto, ON M5S 2S1 - Canada
[4] Ctr Addict & Mental Hlth, Dept Clin Res, Toronto, ON M5T 1R8 - Canada
[5] Columbia Univ, Mailman Sch Publ Hlth, Dept Epidemiol, New York, NY 10032 - USA
[6] Univ Sao Paulo, Dept Psychiat, Gambling Outpatient Unit, BR-05403903 Sao Paulo - Brazil
[7] Univ Sao Paulo, Sch Med, Dept Psychiat, BR-05403903 Sao Paulo - Brazil
[8] Univ Toronto, Dept Psychol, Toronto, ON M5S 1A1 - Canada
[9] Ctr Addict & Mental Hlth, Res Program, Toronto, ON M1C 1A4 - Canada
Total Affiliations: 9
Document type: Journal article
Source: ADDICTIVE BEHAVIORS; v. 39, n. 7, p. 1172-1175, JUL 2014.
Web of Science Citations: 11
Abstract

Background: Pathological gambling (PG) is a heterogeneous disorder. The identification and characterization of PG subtypes could lead to tailored treatment approaches, which may, in turn, improve treatment outcomes. Objective: To investigate PG subtypes based on personality traits across two different cultural and clinical settings. Consistent with the Pathways Model, we hypothesized the presence of three subtypes (behaviorally conditioned - BC, emotionally vulnerable - EV, and antisocial impulsivist - AI). Methods: 140 PG adults from Sao Paulo, Brazil (SP sample) and 352 adults with PG (n = 214) or sub-clinical PG (n = 138) from Toronto, Canada (TO sample) completed the Temperament and Character Inventory (TCI). Latent-class analysis was used to investigate subtypes. Results: A 2-class solution was the best model for the pooled SP and TO samples. Class 1 presented a normative personality profile and was composed exclusively of participants from Toronto (BC subtype). Class 2 was characterized by high novelty seeking, high harm avoidance, and low self-directedness, and included participants from both SP and TO (EV subtype). When sub-clinical PGs were excluded from the analysis, a single-class solution better characterized the SP and TO samples. Conclusions: Our results suggest that PG severity, rather than community or clinical settings, may have an effect on PG subtypes. The generalizability of the results is limited by the demographic and clinical features of the selected samples. Future neurobiological studies may contribute to the categorization of subjects into PG subtypes based on different underlying biological pathways. (C) 2014 Elsevier Ltd. All rights reserved. (AU)