This study shows an intermediate prevalence of PD among French first-year university students compared with those observed in university students in other countries. It suggests that PD is related to university-related stressors but failed to find a relation to socioeconomic factors. Risk and protective factors for PD in first-year university students differed somewhat according to gender. However, mastery appeared to have a protective role in both genders. Further research is necessary to confirm these results in other universities and years.

This paper compares samples of 15-16-year-olds from the UK and France on their usage of alcohol, tobacco and illicit drugs and also seeks to describe the associations between alcohol and other drug use with "family variables" within the two countries. Compared to UK adolescents, French adolescents showed a slightly higher rate of cigarette smoking, were almost identical on cannabis use, rather lower on the use of other illicit drugs and very considerably lower on alcohol use. Family variables were related to substance use. In the two countries, children from non-intact families, those who were not satisfied with their relationships with their father or mother and those who were less closely monitored, were more likely to be heavy substance users than other students. Logistic regressions showed that parental knowledge of the whereabouts of their offspring on Saturday evenings was the strongest factor, in both countries, that family structure is frequently still significant in the UK, and that paternal relationships are highly significant among French students. Differences in national drinking culture, urbanization and parental practices are discussed in an attempt to interpret some of these findings.

The associations between substance use initiation and suicidal behaviors differed in the United States and France. These findings, placed into context, can assist the development and implementation of prevention strategies that seek to reduce the harmful consequences of early substance use among youth.