Tempéraments affectifs des toxicomanes : étude cas-témoins

Emotion regulation in substance use disorders: a systematic review and meta-analysis

BACKGROUND AND AIMS

The ability to regulate emotions effectively has been associated with resilience to psychopathology. Individuals with substance use disorders (SUDs) have been shown to have higher levels of negative emotionality, with some evidence suggesting impairment in emotion regulation compared with individuals without SUDs. However, no previous attempt has been made to systematically review the literature to assess the magnitude of this difference. We aimed to assess the association between SUD diagnosis and emotion regulation as measured by the Difficulties in Emotion Regulation Scale (DERS) and Emotion Regulation Questionnaire (ERQ) through a systematic review and meta-analysis of existing findings.

METHODS

The systematic review was conducted using PubMed, PsycINFO and Embase. We examined cross-sectional studies that compared a SUD group with a control group and measured emotion regulation using the DERS or the ERQ. The primary analysis focused on papers using the DERS, as this was the predominant instrument in the literature.

RESULTS

Twenty-two studies met our primary analysis criteria, representing 1936 individuals with a SUD and 1567 controls. Individuals with SUDs relative to controls had significantly greater DERS scores, with a mean difference of 21.44 [95% confidence interval (CI) = 16.49-26.40, P < 0.001] and Hedges' g = 1.05 (95% CI = 0.86-1.24, P < 0.001). The difference was robust, remaining significant after removing outliers and studies with high risk of bias. Individuals with SUDs demonstrated poorer emotion regulation on each subscale of the DERS, with the largest deficits in the Strategies and Impulse subscales. The ERQ analysis revealed greater use of expressive suppression in those with SUDs relative to controls (Hedges' g = 0.76, 95% CI = 0.25-1.28, P = 0.004).

CONCLUSIONS

People with substance use disorders appear to have greater difficulties in emotion regulation than people without substance use disorders.

Systematic Review and Meta-analysis: Depressive Symptoms and Risky Behaviors Among Adolescents in Low- and Middle-Income Countries

OBJECTIVE

Several studies conducted in high-income countries have found an association between depressive symptoms and risky behaviors among adolescents. Evidence from low- and middle-income countries (LMICs), where 90% of the world's adolescents live, remains scarce. This meta-analysis systematically reviewed evidence examining the association between depressive symptoms and risky behaviors among adolescents in LMICs.

METHOD

Fifteen electronic databases were searched for published or unpublished cohort and case-control studies about adolescents in LMICs. The primary outcome was the association (odds ratio [OR]) between depressive symptoms and risky sexual behavior and substance use. Secondary outcomes included delinquency, adverse school behavior, self-harm, and suicidal behavior. ORs from all studies were pooled using the random-effects model. Quality of studies was assessed using the Newcastle-Ottawa scale, and strength of the overall body of evidence was assessed using Grading of Recommendations, Assessment, Development and Evaluation.

RESULTS

Searches yielded 31,148 potentially relevant studies. After screening, 33 studies were included in the systematic review, of which 30 comprised the meta-analysis. Studies encompassed 35,918 adolescents living in 17 LMICs: 5 from Africa, 7 from Asia, and 5 from Latin America and the Caribbean. Adolescents with depressive symptoms were more likely to engage in risky sexual behavior (OR 1.3 95% CI 1.1-1.5) and substance use (OR 1.8, 95% CI 1.4-2.2) compared with nondepressed adolescents. Results for secondary outcomes showed a similar pattern, with higher delinquency (OR 3.2, 95% CI 1.8-5.6), self-harm (OR 4.4, 95% CI 1.3-14.4), and suicidal behavior (OR 6.6, 95% CI 2.3-18.9) among adolescents with depression compared with healthy adolescents.

CONCLUSION

This study suggests that adolescents with depression in LMICs carry a double burden: depression and increased risk of engaging in risky behaviors. This combination may lead to further psychological and physical health problems that persist over the life course and may impose a health burden on society as a whole. Taken together, these findings highlight the urgent need for scalable and sustainable approaches to prevent and/or treat depression among adolescents in resource-poor settings.

[Temperament and alcoholic behavior in medical students]

BACKGROUND AND AIMS

The Tunisian medical student population is very heterogeneous. This heterogeneity is based among other things on temperamental differences between different students and their behavior and strategies to cope with the requirements and constraints of medical studies. We conducted this study aiming: to determine the prevalence of alcohol use in a student population at Sfax Medical School and to evaluate the factors associated with this use; to study the relationship between affective temperament and alcohol consumption among medical students.

METHODS

We conducted a descriptive and analytical cross-sectional study in the form of a survey between July 2018 and January 2019 among students (aged between 19 and 30) recruited from the University of Medicine of Sfax during their internship in the psychiatric department "A" at CHU HédiChaker of Sfax. We used a pre-established survey sheet based on data from the substance use and affective temperament literature in medical students that was completed by the participants after obtaining their consent and having explained the anonymity and confidentiality of the questionnaire. This sheet included a section on student sociodemographic characteristics, a second part describing the history and characteristics of alcohol consumption and the evaluation of alcohol consumption through the Alcohol Use Disorders Identification Test (AUDIT), and a third part for temperament evaluation by TIME-A, and Temperament Evaluation of Memphis Pisa Paris and San Diego Auto-questionnaire.

RESULTS

We recruited 136 students with an average age of 21.63 years (SD 2 years) and a sex ratio (H/F) of 0.66. Alcohol consumption was observed among 19.8 % of students surveyed, 19.1 % of whom were occasional consumers. The mean age of onset of alcohol consumption was 18.48 years (SD 1.76 years). All consumer students had started using alcohol with their friends. The desired effect was euphoric in 74 % of cases, sleeping for 14.8 % of them. Among consumers, the average score at AUDIT was 6.44 (SD 5.3). Among them 70.4 % had a risk-free consumption (score of 8 or less); 14.8% were at risk (score 9-12) and 11.1 % were likely alcohol dependent (score>12). The evaluation of affective temperament according to TIME-A showed that the cyclothymic and hyperthymic temperament scores were the highest among the students (respectively 5.5 and 4). The analytical study showed that alcohol dependence was significantly more common among male students (p=0.048). Alcohol use was significantly more common among students who smoke (p<0.001) and those who consume cannabis (p<0.001). The bivariate correlation showed that more students had a high score of depressive temperaments (r=0.18, p=0.032), irritable (r=0.2, P=0.018) and hyperthymic (r=0.27, p=0.001). The higher their scores on the AUDIT scale, the more alcohol-dependent they were.

CONCLUSION

The implementation of preventive measures is an obvious emergency. In the same way, taking into account the difference in affective temperaments in this very particular population could have a grandiose importance and an interesting impact both in the screening and in the care of these students.