Older mums deliver more twins
Half of all babies born in Northern Ireland last year were born to mums over 30, which experts say has a direct affect on the Province’s increasing number of twins.
At the same time, the number of teenagers giving birth has fallen to its lowest level in 35 years.
Meanwhile, more twins and other multiples are being born, with more than 400 sets of twins being registered last year.
Dr David Marshall from Northern Ireland Statistics and Research Agency said: “The number of births to older mothers is rising. One consequence of the increasing number of older mothers is an increase in multiple births.”