SF-36v2 norms for New Zealanders aged 55-69 years.

Owing to an ageing population there is growing interest in research to improve the health of older New Zealanders. To facilitate the use of the internationally used SF-36 (version 2) measure of health and quality of life for this work in New Zealand we provide norms and comparative data from the first wave in a longitudinal study of a representative sample of New Zealanders aged 55-69 years. The use of the normative data from this study will facilitate comparisons of results from small clinical samples of older people with the general New Zealand population and international populations. The norms are also available for use in calculating summary physical and mental health summary scores for data from clinical trials and national surveys.