More data is needed to identify the "problem areas" in child deaths, Dr Hilary told Daybreak this morning.
The Government will today announce a national pledge to cut child deaths, being amongst the worst in Europe for child mortality rates.
Dr Hilary said that we need to find out why we are missing the diagnosis of diabetes and asthma, and that the Government's proposals today could help to solve this.
More top news
Relatives of Annie McCourt picketed the Regulation and Quality Improvement Authority in Belfast.
The Labour leader also called for a fresh approach to resolving the conflict in Syria.
Nigel Ingram and John Blight looted HMS Hermes at the bottom of the English Channel in 2014.