It targets the entire population and focuses its efforts on the determinants of mental health that contribute to enhancing the empowerment and the ability to adapt of both communities and individuals.22 Mental health promotion thus refers to establishing individual, social and environmental conditions that support the development of optimal mental health.23 Since mental health promotion targets th [...] The efficiency of the screening depends on the availability of valid tools, the appropriate use of these tools, and the ability of primary health care services to respond to an increased demand for diagnostic evaluation and treatment. [...] Criteria for defining relevance In the present science advisory report, relevance refers to the appropriateness of the measures with respect to the theoretical models and principles of mental health promotion and mental disorder prevention. [...] The conceptual model enables the determination of the relevance of the measures, based on the number of factors targeted by the measure. [...] However, in the mental health field, recognition of the best evidence is still up for debate.33 For the last 25 years, the important contribution of systematic reviews and meta-analyses in the area of prevention and intervention has been widely recognized.34 But, the usefulness of experimental and quasi-experimental methodologies in health promotion is questioned.