Great attention should be paid to the high rate of children who underwent amblyopia with premature birth.

出生时分娩方式与弱视的发生无关，早产儿所占弱视比例较高应予以关注。

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After the bans in 2007 and 2010, the premature birth rate dropped by around 3% each time.

BBC: Smoking ban 'cuts premature births'

"The UK has the highest rate of premature birth in all of Western Europe, and is known to greatly increase a child's risk of serious long term health problems, " said Jane Brewin.

BBC: Long-term risk of premature birth