OBJECTIVE: To examine trends in socio-economic differentials in all-cause mortality in Sydney over a 25-year period (1970-94). METHODS: Five measures of single indicators (two for occupation, two for education and one for income) and a composite measure of socio-economic disadvantage based on...

Background. Traditional 'data-led' information systems have created excessive amounts of poor-quality and poorly utilised data. The Health Information Systems Pilot Project (HISPP), a Western Cape project that started in 1996, initiated a process in one of its three pilot sites to model an...