Aetiology of childhood XXXX , metropolitan Atlanta, 1991-93.

@entity1 @entity1018 @entity227 @entity1939 @entity19355 @entity4064 @entity717
Data from the population-based Metropolitan Atlanta Developmental Disabilities Surveillance Program (MADDSP) were used to describe the underlying causes of @entity227 ( @entity19355 ; corrected @entity227 in the better eye of 20/70 or worse) in young @entity1 (n = 228) in metropolitan Atlanta in 1991-93. @entity1 with @entity19355 were identified through record review at multiple educational and medical sources. @entity1 were categorised as having isolated @entity19355 or @entity717 (i.e. @entity19355 plus one or more of four additional @entity717 ) and as having @entity4064 ( @entity227 20/70-20/400) or @entity1939 ( @entity227 worse than 20/400). Medical conditions abstracted from MADDSP sources were reviewed to determine the probable aetiology of a @entity1 's @entity19355 . Aetiologies were assigned to one of three developmental time periods: prenatal, perinatal, or postnatal. Prenatal aetiologies were identified in 43% of the @entity1 ; 38% of the prenatal aetiologies were genetic. Perinatal aetiologies were found in 27% of the @entity1 . Postnatal aetiologies were rare. Prenatal aetiologies were more common in @entity1 with isolated @entity19355 ; perinatal and postnatal aetiologies were more common in @entity1 with @entity717 . @entity1 with prenatal aetiologies tended to have less severe @entity1018 than did @entity1 with perinatal or postnatal aetiologies. The distribution varied by birthweight, but did not differ significantly by sex or race.
