title: Children with motor impairment related to cerebral palsy: Prevalence, severity and concurrent impairments in China.
abstract: OBJECTIVE
  Cerebral palsy (CP) is the most common cause of motor impairment in childhood. This study aimed to examine the prevalence, severity and concurrent impairments of CP-related motor impairment among Chinese children.
  
  
  METHODS
  Children with CP-related motor impairment aged 0-17 years were identified through a national population-based survey based on World Health Organization International Classification of Functioning, Disability and Health. Logistic regression models allowing for weights were used to examine individual and family factors in relation to CP-related motor impairment.
  
  
  RESULTS
  The weighted prevalence of CP-related motor impairment was 1.25 per 1000 children (95% confidence interval (CI): 1.16, 1.35) in China. Male children, children in multiples and in families where adults suffered from CP, were more likely to be affected by CP-related motor impairment. For mild, moderate, severe and extremely severe groups of motor impairment, weighted proportions of CP were 14.12% (95%CI: 11.70, 16.95), 20.35% (95%CI: 17.48, 23.56), 27.44% (95%CI: 24.25, 30.87) and 38.09% (95%CI: 34.55, 41.76), respectively; and weighted proportions of concurrent visual, hearing and cognitive impairment were 5.00% (95%CI: 3.59, 6.91), 6.98% (95%CI: 5.34, 9.08) and 71.06% (95%CI: 67.57, 74.31), respectively.
  
  
  CONCLUSIONS
  Gender, multiple births and family adults with CP were significantly associated with CP-related motor impairment in Chinese children. Proportions of CP and concurrent impairments that increased with severity of motor impairment were observed.
authors.affiliation: Institute of Population Research, Peking University and WHO Collaborating Center on Reproductive Health and Population Science, Beijing, China.
authors.forename: Ping
authors.initials: P
authors.lastname: He
authors.affiliation: Institute of Population Research, Peking University and WHO Collaborating Center on Reproductive Health and Population Science, Beijing, China.
authors.forename: Gong
authors.initials: G
authors.lastname: Chen
authors.affiliation: Institute of Population Research, Peking University and WHO Collaborating Center on Reproductive Health and Population Science, Beijing, China.
authors.forename: Zhenjie
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Institute of Population Research, Peking University and WHO Collaborating Center on Reproductive Health and Population Science, Beijing, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Guo
authors.affiliation: Institute of Population Research, Peking University and WHO Collaborating Center on Reproductive Health and Population Science, Beijing, China.
authors.forename: Xiaoying
authors.initials: X
authors.lastname: Zheng
mesh_terms: D000293:Adolescent; D002547:Cerebral Palsy / Q000150:complications*; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D016015:Logistic Models; D008297:Male; D000068079:Motor Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology*; D016017:Odds Ratio; D015995:Prevalence; D012307:Risk Factors; D012720:Severity of Illness Index
keywords: cerebral palsy; children; concurrent impairment; motor impairment; severity