Cohort Profile: Burden of Obstructive Lung Disease (BOLD) study

The Burden of Obstructive Lung Disease (BOLD) study was established to assess the prevalence of chronic airflow obstruction, a key characteristic of chronic obstructive pulmonary disease, and its risk factors in adults (≥40 years) from general populations across the world. The baseline study was conducted between 2003 and 2016, in 41 sites across Africa, Asia, Europe, North America, the Caribbean and Oceania, and collected high-quality pre- and post-bronchodilator spirometry from 28 828 participants. The follow-up study was conducted between 2019 and 2021, in 18 sites across Africa, Asia, Europe and the Caribbean. At baseline, there were in these sites 12 502 participants with high-quality spirometry. A total of 6452 were followed up, with 5936 completing the study core questionnaire. Of these, 4044 also provided high-quality pre- and post-bronchodilator spirometry. On both occasions, the core questionnaire covered information on respiratory symptoms, doctor diagnoses, health care use, medication use and ealth status, as well as potential risk factors. Information on occupation, environmental exposures and diet was also collected

Faut-il choquer les fumeurs et les fumeurs potentiels pour dissuader les comportements tabagiques ? : Efficacité des pictogrammes contre le tabagisme

Background As recommended by WHO in the fight against smoking, the French authorities have decided to implement the display of 14 “shock pictures” on cigarette packages in 2011. This study examines the effectiveness of this policy. Methods The present study is based on a self-reported questionnaire administered to a sample of 418 first-year medical students from a private faculty in January 2010. We consider a set of 12 European visual warnings that address different smoking problems. Econometric modeling is used to study the determinants of answers. Results Our results were twofold. Firstly, the most effective symbols concern the smoker himself/herself, they are explicit and related to an advanced stage of disease. Secondly, the warnings seem to be more effective to confirm the non-smokers in their choice than to deter smokers to smoke. Conclusion This tobacco control policy seems to be effective. Therefore, visual warnings have to be carefully chosen before implementation

Tobacco sales to underage buyers in France: findings from a mystery shopping study

International audienceObjectives: In 2017, one in four French 17-year-olds was a daily smoker, even though France prohibited the sale of tobacco to under-18 minors in 2009. This research aims to evaluate the retail violation rate for sale to minors (RVRms) and the associated factors.Study design: The study design used is observational mystery shopping study.Methods: We conducted a mystery shopping study enlisting 12-year-old and 17-year-old youths in a representative sample of 527 tobacco outlets during three weeks in spring 2019. Multinomial Logit and Probit regressions were estimated on the data collected.Results: The law is not respected. Two of three sellers (65.2%) were willing to make an illegal sale to a 17-year-old minor, and almost one in 12 (8.1%) were willing to sell to a 12-year-old child attempting to buy tobacco. Illegal sales were more likely to be made by male sellers, retailing in big cities, when there were no in-shop queues, and to 17-year-old females. The absence of the mandatory enforcement poster flagging up the ban on the sale of tobacco to minors appears to be a strong factor associated with RVRm.Conclusions: These findings show that progress needs to be made to better enforce tobacco control legislation to help decrease underage smoking in France. Rate of compliance with the law could be improved by stronger enforcement measures and tougher sanctions, but also by training and the provision of age-verification tools for sellers, as demonstrated by experiments in other countries

Active learning in optics and photonics: experiences in Africa

Widespread physics education research has shown that most introductory physics students have difficulty learning essential optics concepts - even in the best of traditional courses, and that well-designed active learning approaches can remedy this problem. This mini-workshop and the associated poster session will provide direct experience with methods for promoting students' active involvement in the learning process in lecture and laboratory. Participants will have hands-on experience with activities from RealTime Physics labs and Interactive Lecture Demonstrations - a learning strategy for large (and small) lectures, including specially designed Optics Magic Tricks. The poster will provide more details on these highly effective curricula