Illicit and psychotropic drug use among medical students at the Pontificia Universidad Católica de Chile Background: Illicit drug abuse is a public health problem, generally starting in adolescence. Medical students are not an exception. Aim: To assess the consumption of illicit drugs among medical students of the Pontificia Universidad Católica de Chile. Material and Methods: A questionnaire used by the National Council for the Control of Substance Abuse (CONACE) to evaluate substance use and the Goldberg Health Questionnaire (GHQ-12), were applied to medical students. The questionnaires were self administered under supervision. Results: The survey was completed by 569 of 775 students (74%). "Ever used" reached 33% for marijuana, 1.1% for cocaine, 2.1% for amphetamines without prescription, 6.9% for not prescribed benzodiazepines and 5.8% for not prescribed antidepressants. The use of these substances was only associated for ever used marijuana and level of career (p <0.01), with the highest rate in the seventh final year (51.4%). Benzodiazepine use was also associated with the level of career (p <0.01) with less than 6% prevalence from first to fourth and the highest in seventh year (32.4%). Non prescribed antidepessant use was significantly higher among women. Tobacco and alcohol use were associated with consumption of marijuana (p <0.0001) and benzodiazepines (p <0.0001). Conclusions: Our medical students have low marijuana consumption rates, only above Turkey. Cocaine and amphetamines use is low, benzodiazepine consumption is higher among final year students.
Precision medicine for alcohol use disorder (AUD) allows optimal treatment of the right patient with the right drug at the right time. Here, we generated multivariable models incorporating clinical information and serum metabolite levels to predict acamprosate treatment response. The sample of 120 patients was randomly split into a training set (n = 80) and test set (n = 40) five independent times. Treatment response was defined as complete abstinence (no alcohol consumption during 3 months of acamprosate treatment) while nonresponse was defined as any alcohol consumption during this period. In each of the five training sets, we built a predictive model using a least absolute shrinkage and section operator (LASSO) penalized selection method and then evaluated the predictive performance of each model in the corresponding test set. The models predicted acamprosate treatment response with a mean sensitivity and specificity in the test sets of 0.83 and 0.31, respectively, suggesting our model performed well at predicting responders, but not non-responders (i.e. many non-responders were predicted to respond). Studies with larger sample sizes and additional biomarkers will expand the clinical utility of predictive algorithms for pharmaceutical response in AUD.
A 'positive' screening for DS was associated with worse PFDI-20 and P-QoL scores despite no difference in objective measurements. It may be that depressed patients interpret their symptoms differently.
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