Skip to main content

Table 2 Impairment and neonatal characteristics of the sample

From: Survival and mortality in cerebral palsy: observations to the sixth decade from a data linkage study of a total population register and National Death Index

Characteristic Survivors (max 2749) %a (n) Deaths (max 436) %a (n)
Primary CP type
 Spastic hemiplegia 37.3 (1021) 12.0 (52)
 Spastic diplegia 36.6 (1001) 16.9 (73)
 Spastic quadriplegia 10.3 (282) 53.1 (230)
 Ataxia 7.7 (210) 2.8 (12)
 Dyskinesia 7.1 (193) 12.9 (56)
 Hypotonic CP 1.1 (31) 2.3 (10)
 Datum missing % 0.4 (11) 0.7 (3)
Mixed spastic quadriplegia+dyskinetic 2.2 (60) 8.9 (17)
Estimate of cognitive ability
 Normal/Borderline 61.2 (1658) 11.1 (48)
 Mild 18.0 (487) 17.4 (75)
 Moderate 9.2 (248) 9.5 (41)
Severe/Profound 11.7 (318) 62.0 (268)
Datum missing% 1.4 (38) 0.9 (4)
Epilepsy 29.3 (784) 69.0 (294)
Datum missing% 2.6 (72) 2.3 (10)
 Blind 6.8 (181) 30.3 (126)
 Datum missing% 3.0 (84) 4.6 (20)
 Deaf 3.0 (79) 9.1 (36)
 Datum missing% 3.1 (99) 8.9 (39)
Decade of birth
 1956–60 4.4 (121) 9.6 (42)
 1961–70 12.6 (347) 24.8 (108)
 1971–80 14.5 (398) 17.2 (75)
 1981–90 19.0 (522) 23.6 (103)
 1991–2000 24.6 (677) 18.2 (79)
 2001–2011 24.9 (684) 7.7 (29)
 Male 56.5 (1552) 58.5 (255)
Birthweight
  > =2500 g 66.0 (1470) 75.5 (308)
 1500-2499 g 19.5 (434) 19.1 (78)
  < 1500 g 14.5 (324) 5.4 (22)
 Datum missing %2 18.9 (521) 6.4 (28)
Gestation of birth
  > =37 weeks 66.3 (1732) 79.6 (328)
 32–36 weeks 15.5 (405) 13.1 (54)
  < 32 weeks 18.1 (473) 7.3 (30)
 Datum missing % 5.1 (139) 5.5 (24)
Overall Disability score
 1–5 70.9 (1871) 14.4 (59)
 6–8 17.3 (456) 21.5 (88)
 9–12 11.8 (311) 64.1 (262)
 Datum missing % 4.0 (111) 6.2 (27)
  1. a Proportion of those for whom that datum was not missing