LAUSR

World Psychiatry 21:1 February 2022 ger significant fluctuations in distress and symptoms in the population, which may mask the effects of interventions. The use of appropriate comparison groups would be particularly important for controlling for background fluctuations. The skillful use of online tools (both self-administered and interview-based), combined with more adaptive evaluation designs (e.g., judicious use of planned interim analyses, multi-arm/multistage design, adaptive randomiza tion) are allowing more efficient evalua tions. Looking back, the series of recent events may have disrupted roadmaps and imposed new demands in this rapidly changing youth mental health landscape. None theless, effective and sustainable work for young people could be made possible with quick and careful adaptations. Youth mental health training should not be overlooked, as multi-disciplinary work involving youth workers, psychologists and psy chiatrists, as well as the voices of young peo ple themselves, are keys to success. Ro bust futureadaptability is crucial in the shaping of an apt youth mental health plat form.