Comparison of risk factors for cerebral palsy in twins and singletons

Area of Science:

• Neurology
• Pediatrics
• Epidemiology

Background:

• Cerebral palsy (CP) is a group of disorders affecting movement and posture.
• Understanding risk factors, including birth status (singleton vs. twin), is crucial for CP prevention and management.

Purpose of the Study:

• To investigate differences in cerebral palsy (CP) rates between singleton and twin births.
• To identify predictive factors for CP in both singletons and twins.
• To compare the types of CP observed in singletons versus twins.

Main Methods:

• Utilized data from the Scottish Register of Children with a Motor Deficit of Central Origin and the Scottish Morbidity Record series.
• Analyzed a cohort of children born in Scotland between 1984 and 1990.
• Compared CP prevalence, risk factors (low birthweight for gestational age, prematurity, male sex), and CP subtypes between singleton and twin births.

Main Results:

• Higher prevalence of CP was observed in twins compared to singletons.
• Low birthweight for gestational age, preterm birth, and male sex were associated with increased CP risk in both groups.
• After adjusting for gestational age and birthweight, twins remained at increased risk for CP.
• Spastic bilateral CP was more common in twins (64.9%) than in singletons (48.5%).

Conclusions:

• Twins exhibit a higher risk of cerebral palsy compared to singletons, independent of gestational age and birthweight.
• The pattern of CP prevalence across gestational ages differs between twins and singletons.
• Distinct etiological factors may contribute to cerebral palsy in twin versus singleton births.