Joan Morris, professor of medical statistics at Queen Mary University, says that the rate of birth defects has stayed "pretty much the same" and is similar to that of Europe.
Overall, our impression is that we're pretty similar to Europe although we have higher rates of abdominal defects, particularly among younger mothers.
People feel this is lifestyle related. Evidence suggests that risks are increased, particularly in lower body mass index mums - the thinner teenage pregnancies - but we can't say that's definitely the cause.
We also have higher rates of neural tube defects than other countries but it's not exactly clear why.
More top news
The attack on a college in Garissa, Kenya, comes a day after President Uluru Kenyatta declared: ''Kenya is safe".
The pre-trial hearing for a British banker, accused of murdering two women in Hong Kong last November, was adjourned for five weeks.
Conservationists say one of the UK's most threatened butterflies has recorded its best year for a decade following 2014's warm spring.