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Published on: November 20, 2015
[Premature, low birth weight, small for gestational age and childhood cerebral palsy]
Song Li1, Shi-xin Hong, Tai-mei Wang
1Department of Pediatrics, Peking University Third Hospital, Beijing 100083, China.
Insights
Prematurity and small for gestational age are significant risk factors for childhood cerebral palsy (CP). These factors, along with low birth weight, increase CP risk, while postmaturity and large for gestational age do not.
Area of Science:
- Perinatal epidemiology
- Neurology
- Developmental pediatrics
Context:
- Childhood cerebral palsy (CP) is a significant public health concern.
- Understanding perinatal risk factors is crucial for prevention and early intervention strategies.
- A large-scale cross-sectional survey was conducted in China to assess these associations.
Purpose:
- To investigate the relationship between key perinatal risk factors and the incidence of childhood cerebral palsy (CP).
- To quantify the risk associated with prematurity, low birth weight, and small for gestational age (SGA) in CP development.
- To determine if postmaturity and large for gestational age (LGA) are associated with increased CP risk.
Summary:
- The study analyzed data from 305,263 children aged 1-6 years, identifying 484 cases of CP.
- Prematurity (RR = 25.16), low birth weight (RR = 19.63), and SGA (RR = 4.34) showed strong correlations with CP.
- Specific combinations, such as premature SGA (RR = 40.99), demonstrated the highest relative risks for CP.
Impact:
- Identifies prematurity and SGA as independent, significant risk factors for childhood cerebral palsy.
- Provides crucial data for targeted interventions aimed at reducing CP incidence in at-risk newborns.
- Highlights the need for focused neonatal care for premature and SGA infants to mitigate long-term neurological risks.
Objective:
To investigate the relationship between perinatal risk factors such as premature, low birth weight, small for gestational age and childhood cerebral palsy (CP).
Methods:
A cross sectional survey was carried out among 305,263 children aged 1 - 6 years old in seven cities of Jiangsu Province, China from May to July 1997. The perinatal risk factors were analysed.
Results:
Four hundred and eighty-four cases of CP were found among this population. The prevalence of CP for children aged 1 - 6 years old was 1.59 per thousand. The prevalence of CP were strongly correlated to prematurity (RR = 25.16), low birth weight (RR = 19.63), and also highly correlated to small for gestational age (RR = 4.34). For smaller groups divided by small for gestational age (SGA), appropriate for gestational age (AGA), large for gestational age (LGA) and then by gestational age, prematurity was found to be at high risk in SGA (RR = 9.29), AGA (RR = 28.34) and LGA (RR = 21.41) groups. For groups divided by gestational age and then by SGA, AGA and LGA, SGA was found to have significantly high risk in premature (RR = 1.45), mature (RR = 4.41) and postmature (RR = 3.19) groups. Nine groups were divided by the gestational age along with SGA, AGA and LGA, rates of CP were found to be significantly higher in most groups than in the term AGA group. Compared with the rate of CP in the term AGA group, the RR were calculated and showed as followings (from higher to lower), premature SGA (RR = 40.99), premature AGA (RR = 28.34), premature LGA (RR = 21.08), postmature SGA (RR = 8.39), mature SGA (RR = 4.41) and postmature AGA (RR = 2.63).
Conclusion:
Prematurity and small for gestational age are both independent risk factors for cerebral palsy. Postmaturity and large for gestational age are not risk factors.
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