A study comparing premature babies born 11 years apart has shown more newborns than ever are surviving.
Major medical advances have helped babies born between 24 and 26 weeks. But the rates of severe health complications have not improved at all.
ITV News's Medical Editor Lawrence McGinty reports:
The survival rate of babies born before their mothers are 27 weeks pregnant has increased, research suggests.
However, the proportion of premature babies who experience serious health problems has remained "largely unchanged", according to two studies published in the British Medical Journal.