Geography/access to health services (e.g. urban/rural/remote geographic classification). Intervention target or focus (e.g. target population defined by age, sex, ethnicity) and intervention type. Performance measures (e.g. the national health performance framework). Precepts, principles, philosophy (e.g. equity). Service production/provision (where service is produced/provided e.g. institutional health services, non-institutional health services) and service delivery/settings (where service is delivered e.g. school, workplace, community). Sources of funds (e.g. health/non-health; levels of government). Theories and models (e.g. 'harm minimisation', 'user pays'). Time (e.g. incubation periods, time-lags, investment periods, break-even points). Workforce (e.g. public health specialists, local government workers, school nurses).