What Conditions are Tested by Early Check?
From September 2023-October 2025, Early Check offered screening for hundreds of serious health conditions and the risk for type 1 diabetes.
All babies born in North Carolina are already screened shortly after birth for over 60 health conditions as part of standard newborn screening.
Early Check provided extra, optional testing for babies whose parents sign up for the study. Conditions tested by Early Check changed over time. Since Early Check began, conditions were added and removed as we learned more about them.
Our team of experts reviewed and selected these conditions using a common set of guidelines. Below you can find brief descriptions of the kinds of conditions screened by Early Check.
Is Early Check screening perfect?
- Early Check screening does not find all health conditions in all babies.
- If Early Check found a potential health condition in a baby, follow-up testing was done to learn more.
- All babies are different. For babies with the health conditions screened through Early Check, the study team and doctors will not know exactly when their symptoms will start and how severe the symptoms will be.
Conditions Screened by Early Check September 2023-October 2025.
- Early Check used DNA sequencing to screen for over 100 rare genetic conditions that can be managed with early treatment.
- These conditions usually cause serious symptoms or death if not treated early.
- All babies signed up for Early Check were tested for these treatable conditions.
What are some examples of health conditions in this group?
- Examples include some types of childhood cancers, like retinoblastoma; genetic conditions that affect heart rhythm, like Jervell and Lange-Nielsen syndrome; neonatal diabetes; genetic forms of bleeding disorders, like hemophilia; and many more.
Why is early diagnosis important?
- Early diagnosis and treatment can prevent or improve most serious symptoms and can be life-saving for some conditions.
- Early Check used DNA sequencing to look for a smaller group of rare genetic conditions that currently have less effective treatments.
- These conditions usually cause babies or children to have serious symptoms that may not be prevented with existing treatments. For some, research studies to improve care for children with these conditions are happening now.
- Parents were able to choose if they wanted to sign their baby up to be screened for the conditions in Group 2.
What are some examples of health conditions in this group?
- Examples include some types of intellectual and developmental disability; some muscle disorders, like Duchenne muscular dystrophy; and many more.
Why is early diagnosis helpful?
- Early diagnosis, medicines, and special care may help to give children with these conditions the best possible start and may allow children to take part in studies that could lead to better treatments.
- Early Check provided parents the opportunity to learn their baby’s genetic risk for type 1 diabetes. Type 1 diabetes is a fairly common and treatable health condition and is the most common form of diabetes in children. (Note: Type 1 Diabetes is not the same as type 2 diabetes, which is more common in adults.)
- Type 1 diabetes causes serious symptoms or death if not treated.
- Babies are not born with type 1 diabetes, but it can show up later in childhood.
- Early Check used information from DNA sequencing to calculate the baby's risk of getting T1D during their lifetime. This screening test does not give a “yes” or “no” answer.
- Parents were able to choose if they wanted to sign their baby up to be screened for the risk of type 1 diabetes.
- Learn more about screening for T1D here.
Why is this information important?
- For babies with a higher risk for type 1 diabetes, parents and doctors can watch for signs of the condition as they grow. This could lead to earlier diagnosis, treatment, and better health for a child with type 1 diabetes.
How did Early Check select the conditions to include?
Our team developed a set of guidelines for reviewing and selecting health conditions for screening by Early Check. For these conditions,
- signs and symptoms usually begin in early childhood,
- support services, treatments in development, and/or approved treatments are available for affected children,
- treatments may be more effective when started very early in the disease course,
- early identification would likely lead to an overall benefit for babies or families.
Over time, Early Check added more conditions. We drew on our guidelines, the advice from our board of expert advisors, and the most up-to-date scientific evidence to find conditions that fit with the goals of Early Check.
How did we decide which genes and conditions to include in Group 1 and Group 2?
There are two ways a condition could be included in Group 1.
OR
There are two ways a condition could be included in Group 2.
OR
Here is our framework for inclusion.
"There are many health conditions that impact young children that are currently not screened for during standard newborn screening. We hope that, through Early Check, we can show that screening for these conditions is possible and leads to benefits for children and their parents."
– Heidi Cope, MS, CGC
