Neuroepidemiology 2000 Jul


Neuroepidemiology 2000 Jul-Aug;19(4):177-85


Seasonal Birth Patterns of Neurological Disorders

Torrey EF, Miller J, Rawlings R, Yolken RH


Existing seasonal birth studies were reviewed for multiple sclerosis (MS),

Alzheimer’s disease, Parkinson’s disease, amyotrophic lateral sclerosis (ALS),

epilepsy, cerebral palsy, congenital malformations of the central nervous system

and mental retardation.  Epilepsy appears to have the most consistent

pattern, with an excess of births in winter and a deficit in September. 

MS, ALS and possibly Parkinson’s disease appear to have an excess of spring

births.  Studies of cerebral palsy are not conclusive, although there are

suggestions that there may be an excess of summer births.  The findings for

Alzheimer’s disease, congenital malformations of the central nervous system, and

mental retardation are contradictory and insufficient to draw any conclusions.