TABLE 4.

Difference in the Types of Spastic CP at Different Birth Weights: A Comparison Between 1975–1977, 1981–1985, and 1986–1991

Birth Weight (Grams)Type of CPBirth Cohort
1975–1977*1981–19851986–1991
Number of CasesPercentNumber of CasesPercentNumber of CasesPercent
<1500SD2730364632
SH72623272719
SQ134825305135
Nonspastic519672014
Total2710084100144100
1500–2499SD51719271720
SH72311161618
SQ144730433338
Nonspastic41310142124
Total301007010087100
>2500SD101919182210
SH122331295827
SQ152839366431
Nonspastic163019176832
Total53100108100212100
  • SD indicates spastic diplegia; SH, spastic hemiplegia; SQ, spastic quadriplegia.

  • * CP cases identified at 10 years of age.

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