[An appropriate approach to loneliness: A translation of empirical data into practice].

We describe three subgroups of older lonely people (Persona), and design different approaches to loneliness that directly address their specific needs and circumstances: the combination approach. The use of Persona is a middle ground between 'one approach appropriate for all' and 'each person's own approach'. A Persona is described using various risk factors for loneliness. These are advanced age, living alone, small network, low perceived control, and low income. Based on this, we explore the potential effect of improving some of these situations for reducing loneliness (Cohen's d ranges between -0.33 and -0.58). For two approaches we report what the realized effect was (d=-0.83 in both interventions). The three Persona and the approaches are examples that designers of a loneliness approach can use by analogy to elaborate and substantiate their approach.