Opioid overdose risk during and after drug treatment for heroin dependence: An incidence density case-control study nested in the VEdeTTE cohort.

Introduction And Aims: To corroborate protective effects of a range of drug treatment modalities against overdose mortality risk.

Design And Methods: Nested case-control study, with incidence density sampling, selecting controls retrospectively at each case event. Cases and controls came from a sub-cohort of opioid-dependent patients (n = 4444) from two Italian regions (Lazio and Piedmont).

[Paclitaxel-coated balloons for in-stent restenosis treatment: long-term clinical results and predictors of recurrent target lesion revascularization].

Background: The aim of this study was to report clinical outcomes in patients treated with paclitaxel-coated balloons (PCB) for in-stent restenosis (ISR) in both bare metal (BMS) and drug-eluting stent (DES).

Methods: Between May 2009 and December 2015, we treated 155 ISR in 140 patients. At recruitment, 35% of patients had diabetes.

Periodontal health in teenagers treated with removable aligners and fixed orthodontic appliances.

Objectives: The purpose of this study was to explore the microbiological and periodontal changes occurring in adolescents during 12 months of orthodontic therapy with removable aligners and with fixed appliances.

Material And Methods: During the years 2012-2013, 50 teenagers aged 10-18 years with similar initial orthodontic conditions participated in this trial in a university clinic in northern Italy. After receiving professional oral hygiene and instructions on a standardized oral hygiene protocol, the adolescents were randomly assigned to either orthodontic treatment with traditional fixed brackets (n = 25) or to treatment with Invisalign® aligners (n = 25).

"Unplugged," a European school-based program for substance use prevention among adolescents: overview of results from the EU-Dap trial.

The EU-Dap study aimed to develop and evaluate a school-based curriculum for the prevention of substance use among young people. The school curriculum, "Unplugged," is based on social influence approach and addresses social and personal skills, knowledge, and normative beliefs. It consists of 12 one-hour interactive sessions delivered by teachers.

Classroom characteristics and implementation of a substance use prevention curriculum in European countries.

Background: Partial implementation may explain modest effectiveness of many school-based preventive programmes against substance use. We studied whether specific characteristics of the class could predict the level of implementation of a curriculum delivered by class teachers in schools from some European countries.

Methods: Secondary analysis of data from an evaluation trial.

The impact of different sources of body mass index assessment on smoking onset: An application of multiple-source information models.

Multiple-source data are often collected to provide better information of some underlying construct that is difficult to measure or likely to be missing. In this article, we describe regression-based methods for analyzing multiple-source data in Stata. We use data from the BROMS Cohort Study, a cohort of Swedish adolescents who collected data on body mass index that was self-reported and that was measured by nurses.

Predictors of erroneous perception of being overweight among adolescents.

Objective: Adolescents' perception of overweight often disagrees with objective measurements; if factors explaining this discrepancy are potentially modifiable is unclear.

Methods: We analyzed cross-sectional data from a cohort of 2,001 Swedish adolescents (1,026 females, 975 males) at the age of 15 years in 2003. Erroneous perception of overweight was defined as the perception of being overweight in relation to normal or lower than normal BMI (kg/m(2)).

The influence of socioeconomic environment on the effectiveness of alcohol prevention among European students: a cluster randomized controlled trial.

Background: Although social environments may influence alcohol-related behaviours in youth, the relationship between neighbourhood socioeconomic context and effectiveness of school-based prevention against underage drinking has been insufficiently investigated. We study whether the social environment affects the impact of a new school-based prevention programme on alcohol use among European students.

Methods: During the school year 2004-2005, 7079 students 12-14 years of age from 143 schools in nine European centres participated in this cluster randomised controlled trial.

The effect of Teflon coating on the resistance to sliding of orthodontic archwires.

Teflon is an anti-adherent and aesthetic material. The aim of this study was to evaluate, in vitro, the influence of Teflon coating on the resistance to sliding (RS) of orthodontic archwires. For this purpose, Teflon-coated archwires were examined using frictional resistance tests by means of a universal testing machine and compared with conventional uncoated wires.

Effects of a school-based prevention program on European adolescents' patterns of alcohol use.

Purpose: School-based substance abuse prevention programs are widespread but are rarely evaluated in Europe. We aimed to evaluate the effect of a new school-based prevention program against substance use on the frequency of alcohol consumption and alcohol-related problem behaviors among European students.

Methods: During the school year 2004-2005, a total of 7,079 students aged 12-14 years from 143 schools in seven European countries participated in this cluster randomized controlled trial.

Overweight and perception of overweight as predictors of smokeless tobacco use and of cigarette smoking in a cohort of Swedish adolescents.

Aims: To study the association between measured or perceived overweight in adolescence and subsequent uptake of cigarette smoking and of the Swedish smokeless tobacco 'snus' (oral moist snuff).

Design: Population-based prospective cohort study with 7 years' follow-up.

Setting: Self-administered questionnaires and school nurses' visits.