Figure 4
From: Participation and engagement in online cognitive testing

The influence of self-reported somatic and mental health problems, as well as learning disabilities and self-reported memory problems in HUNT4 on the probability of participating in Hjernetrim. Each color represents a separate model. Fifty-year-olds, women, and those with secondary education were used as references as these were the most numerous subgroups. For details on variables and their frequency, see Tables 1 and 2.