Table 1. Sources of data for economic analyses, from different perspectives.

Perspective	Cost component included	Data sources
Health system perspective	Direct cost of health care to the SUS. Includes costs of visits, hospitalization and tests and other items such as wheelchair or orthosis/prothesis if required.	•   Database of prospective resource use of the participants combined with the SUS table of procedures and their costs •   Quantitative questionnaire data
Household perspective	•   Direct medical costs •   Direct non-medical costs (e.g. travel) •   Indirect costs (e.g. lost productivity) •   Coping costs (e.g. selling assets)	•   Quantitative questionnaire data
Societal perspective	Includes both, the costs to the household and the health system as above. In addition it also includes the cost of social services.	All as described above and source for cost of social services is the questionnaire