ABSTRACT
The Health and Lifestyle Survey (HALS) is an example of a health interview survey. Aspects of the survey are used in Chapters 5 and 6. The HALS was designed as a representative survey of adults in Great Britain (see Cox et al. 1987 and 1993). The population surveyed comprised individuals aged 18 and over living in private households. In principle, each individual should have an equal probability of being selected for the survey. This allows the data to be used to make inferences about the underlying population. HALS was designed originally as a cross-section survey with one measurement for each individual. It was carried out between the autumn of 1984 and the summer of 1985, and information was collected in three stages:
• A one-hour face-to-face interview, which collected information on experience and attitudes towards health and lifestyle along with general socioeconomic information.
