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Background Migrants make up a growing share of European populations, and very little is known about the impact of migration on their smoking patterns. We develop a longitudinal analysis of smoking prevalence among native-born and immigrants in France based on retrospective data collected in the 2010 national Baromètre santé health survey. Methods Analyses concerned 19 578 individuals aged 18–70 years and born in metropolitan France, in the Maghreb or in sub-Saharan Africa. Person-years with and without smoking were reconstructed using migration and smoking histories and analyzed with discrete-time regression models. Results Prior to migration, immigrants from both the Maghreb and sub-Saharan Africa had lower smoking prevalence than the native-born of similar birth cohort, age and education. After migration, the prevalence increased over time among Maghrebin men up to levels beyond those of the native-born (odds ratio: 1.54 [1.09–2.17] for 10 years of residence or more), while it remained much lower throughout among men from sub-Saharan Africa (odds ratio: 0.36 [0.19–0.68] for 10 years of residence or more). Starting at extremely low levels, the prevalence in both groups of women rose considerably after migration. Women from sub-Saharan Africa nearly caught up to the native-born (odds ratio: 0.70 [0.37–1.32] for 10 years of residence or more), but this was not the case for those from the Maghreb (odds ratio: 0.52 [0.33–0.81] for 10 years of residence or more). Conclusion The findings uncover the low pre-migration prevalence and the diversity of post-migration trajectories. Tobacco control programs targeting recently arrived migrants would contribute to prevent unhealthy assimilation. [ABSTRACT FROM AUTHOR]

Background: Worldwide, millions of deaths each year are attributed to alcohol. We sought to examine French people's beliefs about the risks of alcohol, their correlates, and their associations with alcohol use., Methods: Data came from the 2010 Baromètre Cancer survey, a random cross-sectional telephone survey of the French general population (n = 3359 individuals aged 15-75 years). Using principal component analysis of seven beliefs about alcohol risks, we built two scores (one assessing risk denial based on self-confidence and the other risk relativization). Two multiple linear regressions explored these scores' socio-demographic and perceived information level correlates. Multiple logistic regressions tested the associations of these scores with daily drinking and with heavy episodic drinking (HED)., Results: About 60% of the respondents acknowledged that alcohol increases the risk of cancer, and 89% felt well-informed about the risks of alcohol. Beliefs that may promote risk denial were frequent (e.g. 72% agreed that soda and hamburgers are as bad as alcohol for your health). Both risk denial and risk relativization scores were higher among men, older respondents and those of low socioeconomic status. The probability of daily drinking increased with the risk relativization score and that of HED with both scores., Conclusions: Beliefs that can help people to deny the cancer risks due to alcohol use are common in France and may exist in many other countries where alcoholic beverages have been an integral part of the culture. These results can be used to redesign public information campaigns about the risks of alcohol., (© The Author 2017. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved.)

Background: Research has shown that cannabis use contributes to school dropout, but few studies have distinguished the age at onset of use from the age at progression to daily use neither their interaction with grade repetition., Methods: This study is based on a French representative cross-sectional survey (N = 29,393 teenagers aged 17 years) and uses retrospective data. The influence of drug-use patterns <16 years of age on school-dropout rates (5.3%) are modelled with logistic regressions among boys and girls., Results: The main factors associated with dropout were a low family socio-economic status, early grade repetition, single-parent families and daily tobacco smoking (ORa > or = 2.6). The link with the move to daily cannabis use was more evident when it occurred <14 years of age (ORa = 2.05 for boys and 3.41 for girls) rather than at > or =15 years (ORa = 1.45 for both sexes). The onset of cannabis use was not significant when occurring <14 years of age, but was linked to school attainment when occurring at age 15-16 years (ORa = 0.80 for boys and 0.64 for girls). Results are similar for alcohol use. Repeating a grade before beginning to use cannabis increased the dropout rates compared with the opposite sequence. Girls were more affected by early grade repetition and by early and daily cannabis use., Conclusion: Cannabis use is rarely a trigger for grade repetition but can have either damaging or positive effects on school attainment depending of the level of use. Positive social competence reflected by peer initiation should be investigated to understand this paradoxical effect.

Background: General population surveys do not provide reliable estimates of problem drug users, which are essential for drug use prevention and treatment policies. Indirect estimation methods, especially capture-recapture method, are preferred. Problem drug use receives now a growing interest on a European level. Very few studies using this method have been carried out in France especially on a multicentric level., Method: Six three-sample capture-recapture analyses were carried out in urban areas of Lille, Lyon, Marseille, Metz, Rennes, Toulouse. Data were collected in 2006 from different sources including treatment data, harm reduction and social data and law enforcement data. Users of opiates, cocaine/crack, stimulants and/or hallucinogens aged 15-64 were identified. Log-linear models were fitted to the data in order to test different interactions between the data sources representing potential dependencies. The simplest model was selected on the basis of its Akaike Information Criterion (AIC) and log-likelihood ratio tests. Confidence intervals were estimated using the likelihood interval method., Results: The total number of problem drug users was estimated to be 7900 (95% CI 6300-10 200) in Lille, 8400 (6300-11 800) in Lyon, 5600 (4200-7700) in Marseille, 2300 (1700-3200) in Metz, 1500 (1100-2300) in Rennes and 5400 (4300-6900) in Toulouse (estimates are rounded to nearest 100). These figures correspond to the following prevalence rates of the population aged 15-64 years: 10.8 per thousand (8.6-14.0) in Lille, 10.6 (8.0-15.0) in Lyon, 10.3 (7.7-14.2) in Marseille, 10.8 (8.0-15.0) in Metz, 7.6 (5.6-11.7) in Rennes, 10.1 (8.0-12.9) in Toulouse., Conclusions: Although the confidence intervals are wide, the method provides valuable information on the extent of problem drug use.