Socio-demographic conditions, subjective somatic health, Axis I disorders and personality disorders in the common population: the relationship to quality of life.

Quality of life (QOL) was studied in a population of 2,065 subjects in Norway. A broad concept of QOL was applied, including subjective well-being, self-realization, negative life events, and a number of interpersonal relationships. The assessment of QOL, based on interview, was related to a number of socio-demographic variables, subjectively experienced somatic health, the most common Axis I disorders, and all Axis II personality disorders (PDs). The results of multivariate analyses showed that being female and living with a partner in the outskirts of a city and having good physical health are important positive correlates of QOL. Controlling for all these variables, major depression, dysthymic disorder, and somatoform disorders were the Axis I disorders that have a negative statistical effect on global QOL. Specific anxiety disorders did not add to the effects. Among the PDs, avoidant, schizotypal, paranoid, and schizoid PD traits were the most important statistical negative determinants of QOL, followed by borderline, dependent, antisocial, and also self-defeating and narcissistic PDs, restricted to some specific sub-indexes of QOL. The study also showed that our results vary and are sometimes the opposite, depending on the sub-index of QOL examined. The study showed that it is necessary to apply a broad concept of QOL to disclose the real nature or the relationship between mental disorders and QOL. Furthermore, demographic variables, subjectively experienced somatic health, Axis I disorders, and PD traits appeared to be independently associated with QOL.