Health Interoperability into Practice: Results of the Development of a Consent Form in a Pilot Project in a Health District in São Paulo, Brazil.

Interoperability of health information systems is a centerpiece of the "E-Health" Brazilian Ministry of Health strategy. It aims to solve at least partially the health information technology puzzle that we face today. This paper describes a health information exchange pilot project in a health district of the city of São Paulo. It discusses the results of the development of an informed consent form for health information exchange. This consent form showed excellent results, with median application time of 3 minutes and with 97.8% of patients feeling fully clarified. The patients' perception when faced with options of consent to share their data is also described.