What “Deidentified Data” Really Means

When you participate in the FTD Disorders Registry Research Study, you may be asked to share information about your diagnosis, symptoms, care experience, family history, genetic testing, medical records, or other parts of your FTD journey. This information can help researchers better understand frontotemporal degeneration and design studies that reflect the real experiences of people and families impacted by FTD.

But one phrase can feel a little unclear at first: deidentified data.

What does that really mean? And how can your information be useful to researchers while still protecting your privacy?

Deidentified data does not include your name or direct contact information

Deidentified data is information that has had personal identifiers removed before it is shared with qualified researchers. That means researchers who receive deidentified Registry data do not receive details like your name, email address, phone number, street address, or other direct contact information.

Instead, the information is shared in a way that allows researchers to study patterns across many participants without knowing who each participant is.

For example, a researcher might be able to see that a participant is a person diagnosed with behavioral variant FTD, is in a certain age range, reported certain symptoms, and completed a specific survey. But they would not receive that person’s name or direct contact details as part of a deidentified dataset.

Deidentified does not mean the data loses its value

Removing identifying information does not make the data less meaningful. In fact, deidentified data can be incredibly valuable because it allows researchers to look across the experiences of many people.

Researchers may use deidentified data to better understand questions such as:

What symptoms tend to appear first? How long does it take people to receive a diagnosis? What kinds of specialists are involved in the diagnostic process? How do care partners describe changes over time? How many people report genetic testing, medical record sharing, or interest in future research?

When many participants contribute information, researchers can begin to see patterns that may not be visible from one person’s experience alone. Those patterns can help shape future studies, improve recruitment, and highlight areas where people with FTD and their families need more support.

Your identity is protected, but your experience still counts

One of the goals of deidentification is to separate the information that is useful for research from the information that directly identifies you.

That distinction matters. Your experience can help researchers answer important questions about FTD, while safeguards help protect your privacy.

For many people, this is the heart of why the Registry matters. FTD is rare, and every participant adds to a clearer picture of the disease. Deidentified data helps make that possible in a responsible way.

Deidentified data can support many kinds of research

The Registry Research Study collects information that may be useful to researchers studying diagnosis, symptoms, genetics, care experiences, quality of life, and the needs of families impacted by FTD.

Participants in the research study may also choose to link medical records and share genetic test results. When combined with survey responses and other Registry information, these data can help researchers better understand the full FTD journey.

Deidentified data gathered through the Registry Research Study may be made available to researchers by request. This allows the Registry to support research beyond a single project or institution, helping more studies benefit from the information participants have chosen to share.

Deidentified data is different from being contacted about research

It is also important to understand the difference between sharing deidentified data and being contacted about a research opportunity.

If you choose to indicate that you are willing to hear about future studies, the Registry may use the information in your profile to help identify research opportunities that may be relevant to you. In those cases, the Registry can send you information about a study, and you can decide whether you want to learn more.

Researchers do not automatically receive your contact information because you appear to match a study. You remain in control of whether you respond to a research notice or take the next step.

Why this matters

Research progress depends on data. But it also depends on trust.

Deidentified data helps make it possible for participants to contribute to FTD research while maintaining important privacy protections. It allows researchers to learn from real experiences, identify patterns, ask better questions, and design stronger studies.

When you take part in the Registry Research Study, your information becomes part of something larger. Your individual story remains protected, but the knowledge drawn from many stories can help move the field forward.

That is the power of deidentified data: it helps ensure that your experience can contribute to research while keeping the focus where it belongs: on advancing understanding of FTD and supporting the people and families impacted by it.