What happens to information about your health after you leave a clinic—or take off a smartwatch? Health data can include diagnoses, prescriptions, and the measurements collected by wearable devices. It matters not only to your care but also to organizations that want to analyze or share it. section 3.2 section 3.5.1
Sharing this information can help improve healthcare, develop drugs, and support research into new therapies. It also raises a difficult question: who gets access, and under what conditions? In a UK survey, 47% of respondents would allow the NHS to pass their data to public-sector companies to improve healthcare delivery; 42% would allow sharing with private companies. section 3.2 section 5.10
Read beyond the word “care”
A healthcare provider’s privacy policy may name far more recipients than doctors and nurses. One policy listed insurers, contractors, researchers, public authorities, and other organizations. If you want to know where your information might go, the recipient list is worth reading. section 5.9
Privacy and useful research need not be treated as opposites. Proposed safeguards include encrypting data, limiting access, training the people who handle it, and keeping data in a secure environment where approved researchers work. Health data is also being contributed to data commons, particularly in the US and UK, to support research. These approaches make the terms of sharing—not just the possibility of sharing—the question to ask. section 5.10 section 6.10
