Matthew N. Hall

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OBJECTIVES This study developed prevalence estimates of gambling-related disorders in the United States and Canada, identified differences in prevalence among population segments, and identified changes in prevalence over the past 20 years. METHODS A meta-analytic strategy was employed to synthesize estimates from 119 prevalence studies. This method(More)
BACKGROUND This study updates prevalence estimates of gambling-related disorders in the United States and Canada, identifies differences in prevalence estimates among population segments, and identifies changes in prevalence over the past 25 years. METHOD A meta-analytic strategy guided the synthesis of 180 estimates derived from 146 prevalence studies.(More)
This article reviews the extant published and unpublished studies that estimate the prevalence of adolescent gambling problems in North America. The nine nonduplicative studies identified by our literature search included data collected from more than 7700 adolescents from five different regions of the United States and Canada. In addition to comparing the(More)
From an eligible population of 9,943 casino employees, 6,067 volunteered to participate in this study. Of this sample, 1,176 provided data at 3 observation points approximately 12 months apart. Using the South Oaks Gambling Screen (SOGS; H. R. Lesieur & S. B. Blume, 1987) and the CAGE (J. A. Ewing, 1984) questionnaire, the authors prospectively examined the(More)
BACKGROUND This study examined the prevalence of level 3 (pathological) gambling and a variety of other health risks among casino employees. METHODS A sample of 3841 full-time casino employees representing four geographic sites was surveyed about gambling, drinking, smoking, and other health risk behaviors. In addition, respondents were asked about their(More)
Problems related to intemperate Internet use are examined within the conceptual framework of addiction. It is argued that empirical support for the construct validity of computer addiction has yet to emerge, that defining the construct as a unique psychiatric disorder is therefore premature, and that, in most cases, excessive computer use may be symptomatic(More)
OBJECTIVE The purpose of this article is to describe the key imaging features of primary and metastatic extragonadal germ cell tumors in adults. CONCLUSION Extragonadal germ cell tumors primarily affect men during the third and fourth decades of life. Their imaging characteristics are nonspecific, and extragonadal germ cell tumors should always be(More)
OBJECTIVE A minority of patients with multiple myeloma have imaging findings of extraosseous involvement. Extraosseous myeloma may affect any organ and can mimic other malignancies. The objective of this article is to describe the clinical relevance of extraosseous myeloma and to present the diverse imaging findings of extraosseous myeloma. CONCLUSION The(More)
The veracity of behavioral self-reports is often challenged, particularly when the motivation to avoid stigma and win social approval holds potential to introduce bias into the data collected. This study employed plasma cotinine tests to validate the self-reports of tobacco use collected from 3,841 casino employees as part of a comprehensive health survey.(More)
This article describes the results of an assessment of the substance abuse treatment training needs of social workers working in randomly selected substance abuse treatment facilities in New England. This assessment revealed that clinical supervision related to substance abuse treatment had not been available to a significant percentage of the respondents(More)