Dr Alastair Sutcliffe, who worked on the study, said negative publicity surrounding the rise of older mothers was based on the physical risks of pregnancy and childbirth.

从事这一研究的阿拉斯泰尔·苏特·克里夫医生说，伴随高龄母亲增多而来的负面宣传是以怀孕和分娩的身体风险为根据的。