Short form 36 (SF36) health survey questionnaire: normative data for adults of working age.

OBJECTIVES To gain population norms for the short form 36 health survey questionnaire (SF36) in a large community sample and to explore the questionnaire's internal consistency and validity. DESIGN Postal survey by using a booklet containing the SF36 and several other items concerned with lifestyles and illness. SETTING The sample was drawn from computerised registers of the family health services authorities for Berkshire, Buckinghamshire, Northamptonshire, and Oxfordshire. SAMPLE 13,042 randomly selected subjects aged 18-64 years. MAIN OUTCOME MEASURES Scores for the eight health dimensions of the SF36. RESULTS The survey achieved a response rate of 72% (n = 9332). Internal consistency of the different dimensions of the questionnaire was high. Normative data broken down by age, sex, and social class were consistent with those from previous studies. CONCLUSIONS The SF36 is a potentially valuable tool in medical research. The normative data provided here may further facilitate its validation and use.