Gallus Bischof

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AIMS For the first time, the Diagnostic and Statistical Manual for Mental Disorders (DSM-5) introduces non-substance addictions as psychiatric diagnoses. The aims of this paper are to (i) present the main controversies surrounding the decision to include internet gaming disorder, but not internet addiction more globally, as a non-substance addiction in the(More)
OBJECTIVE Our goal was to analyze the retest reliability and validity of the Alcohol Use Disorders Identification Test (AUDIT) in a primary-care setting and recommend a cut-off value for the different alcohol-related diagnoses. METHOD Participants recruited from general practices (GPs) in two northern German cities received the AUDIT, which was embedded(More)
BACKGROUND Prevalence studies of Internet addiction in the general population are rare. In addition, a lack of approved criteria hampers estimation of its occurrence. AIMS This study conducted a latent class analysis (LCA) in a large general population sample to estimate prevalence. METHODS A telephone survey was conducted based on a random digit(More)
BACKGROUND/AIMS Only rather few data on the validity of screening questionnaires to detect problem drinking in adolescents exist. The aim of this study was to compare the performance of the Alcohol Use Disorders Identification Test (AUDIT), its short form AUDIT-C, the Substance Module of the Problem Oriented Screening Instrument for Teenagers (POSIT), and(More)
Evidence for brief interventions in general hospital (GH) settings is scarce, probably due to higher rates of dependent drinkers. The present study aims to compare unhealthy drinking patterns in GH patients with the general population (GP). Sample 1 consisted of 4,075 individuals randomly drawn from registration office files, representing the(More)
The aim of the present study was to analyze comorbid Axis I-disorders in a sample of individuals with at-risk, problem, and pathological gambling. A number of 164 adult gamblers derived from a random sample of 15,023 individuals were compared with a general population sample. The lifetime prevalence of any psychiatric disorder was 93.6% among pathological(More)
BACKGROUND Brief interventions (BIs) are effective methods to reduce problematic drinking. It is not known, if the effectiveness of BI differs between patients with or without comorbid depression or anxiety disorders. METHODS In a randomized controlled BI study with two intervention groups and one control condition, data were collected from 408 general(More)
BACKGROUND Brief interventions for problem drinking in medical settings are effective but rarely conducted, mainly due to insufficient time. A stepped care approach (starting with a very brief intervention and intensifying efforts in case of no success) could save resources and enlarge effectiveness; however, research is lacking. The present study compares(More)
AIM To test the effectiveness of a brief alcohol intervention among non-dependent general hospital inpatients with alcohol problems, delivered by either a specialized liaison service or hospital physicians. METHOD All inpatients of 29 wards from four general hospitals of one region in Germany were screened for alcohol problems (n=14,332). Of those(More)
AIMS To assess the selection bias of recruiting participants in studies on natural recovery from alcohol dependence through media solicitation. DESIGN Two samples with different recruitment strategies are compared. SETTING Media solicitation and general population. PARTICIPANTS Sample 1 consists of 176 alcohol-dependent individuals remitted without(More)