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Newborn Screening Ontario
Screening Results

By the Numbers

The picture below shows the approximate number of babies born in Ontario each year who have a "screen positive" result and the number of these babies who end up being diagnosed with one of the diseases screened.
Please hover over the three boxes at the bottom of the picture below to see how common each of these results is.
diseases tested by Newborn Screening Ontario

babies born in Ontario each year


babies screen negative
(low risk)


babies screen positive
(high risk)


babies are true positives
(have one of the diseases)