TABLE 3.

Prevalence of CP Prevalence as an Isolated Disability and With Other Disabilities: A Comparison Between 1975–1977, 1981–1985, and 1986–1991

Birth Weight (Grams)CP TypeBirth Cohort
1975–1977*1981–19851986–1991
Number of CasesPercentNumber of CasesPercentNumber of CasesPercent
<1500Isolated CP114139467351
CP and other disability165945547149
1500–2499Isolated CP82731453945
CP and other disability227339554855
>2500Isolated CP91734318339
CP and other disability4483746912961
  • * CP cases identified at 10 years of age.

  • CP cases identified at 3 to 10 years of age.

  • Presence of 1 or more disabilities including mental retardation, hearing impairment, vision impairment, or epilepsy.