Table 1

Children with severe vision loss, born in years 1984–7, diagnosed by the age of 5 years, by birthweight group

Birth weight (g)No of live birthsChildren with severe vision loss
No%Rate/1000 live births95% CI
<15001 1182917.525.917.4–37.0
1500–24997 5482716.33.62.2–4.9
2500–349974 3587847.01.00.8–1.2
3500 and more49 3923219.30.70.4–0.9
All weights132 416166100.01.31.0–1.4