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The study compared health-related quality of life in 165 patients with major depression and 165 randomly selected and with age- and gender-matched controls from a population sample. Health-related quality of life was measured with the self-report questionnaire (RAND-36), which consists of eight dimensions. Overall, perceived quality of life was broadly reduced among depressive outpatients, and as compared with the control group, significant impairment was observed for all eight dimensions of health-related quality of life. Accompanying somatic diseases causing disability had no additional impact on the reduction of quality of life in depressive patients. Depression per se impairs an individual's functioning ability in a number of ways. It has a significant effect not only on mental well-being but also on perceived physical functioning and bodily pain, and even on general health perceptions. Major depression seems to explain the broad decline in the quality of life among depressive patients.
Saarijãrvi et al. (Tue,) studied this question.