[Measuring health-related quality of life with the SF-8. Normal sample of the German population].

The SF-8, a relatively new instrument for measuring health-related quality of life, was used in the German National Telephone Health Survey 2003. The SF-8 provides results which are comparable to those of the SF-36, the instrument most commonly used internationally. The German National Telephone Health Survey provides nationally representative data for the residential population in Germany aged 18 and older. In addition to the measurement of health-related quality of life, comprehensive information on chronic illnesses and complaints, health care needs, utilisation of health care, risk factors, risk behaviour and social status is also collected, making differentiated analyses possible. According to the data collected, men rate their quality of life in all dimensions higher than women. With increasing age, quality of life for both men and women decreases in the physical dimensions, while increasing in the mental health dimensions. Apart from chronic disease and pain having a negative impact on health-related quality of life, social differences are also observable, in that worse health-related quality of life is reported by respondents with lower socioeconomic status.