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.
Our findings show that more babies now survive being born too soon than ever before, which is testament to the highly-skilled and dedicated staff in our neonatal services.
But as the number of children that survive pre-term birth continues to rise, so will the number who experience disability throughout their lives. This is likely to have an impact on the demand for health, education and social care services."
More top news
The Office for National Statistics said gross domestic product grew by just 0.1%.
William's comments came during a surprise appearance at an event scheduled for just his brother.
Matt Campbell, who collapsed just a few miles from the finish line, had hoped to raise £2,500.