Given the outlined limitations associated with available TDI and CUD data, there is a need to improve indicators for high-risk cannabis use or experience of cannabis-related problems in Europe. We propose to use high-frequency use patterns, such as (almost) daily use and the EMCDDA should provide these data by country, year, sex, and age on their website. In the long-run, however, an indicator for high-risk use considering more than just frequency of use should be established [69,70], ideally supplemented with data on quantity of use (see e.g. data from Canada [71]).
