Fig. 2

Social relations. Inspired by Berkman et al.’s model [9], the social relations were divided into two groups, functional and structural aspects of social relations. Each question from the health survey was evaluated according to the model. For the question “Are you in contact with family, friends and acquaintances you do not live with, as often as you like?” five items were listed, including family, friends, colleagues, neighbours and online friends. The questionnaire was originally in Danish and was translated by the authors of this article