Traditional media use and depression in the general population: evidence for a non-linear relationship

Depression is the most common metal disorder linked to media use. Theoretically, the relationship between depression and media use has been conceptualized as a linear function. However, depressive symptoms vary from dysphoric moods to severely depressed states with major social impairment, thus providing a strong alternative rationale for a non-linear relationship. This paper reports on findings from a representative telephone survey of the general German population (N = 2002) including both the respondents’ motivation behind spending time using traditional media and a measure to screen for depression in the general population. The curve-fitting methodology revealed that the associations between depression and media use are described by a cubic growth function for newspapers, the radio, magazines, and books; associations with television use were positive, but more complex. The relationship between depression and media use should be modeled as a polynomial function for more accurate estimations in the future.