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Table 4 Logistic regression of perinatal indicators and unspecified cerebral palsy.

From: Perinatal complications and socio-economic differences in cerebral palsy in Sweden – a national cohort study

   Model 1OR
(95% C.I.)
Model 2* OR
(95% C.I.)
Model 3* OR
(95% C.I.)
Model 4* OR
(95% C.I.)
Model 5* OR
(95% C.I.)
Model 6* OR
(95% C.I.)
SES        
  Unclassified 1.40
(1.08–1.80)
1.41
(1.09–1.82)
1.31
(1.01–1.69)
1.34
(1.04–1.73)
1.38
(1.07–1.78)
1.25
(0.96–1.62)
  I+II 1.51
(1.18–1.93)
1.49
(1.16–1.91)
1.40
(1.09–1.80)
1.43
(1.11–1.83)
1.46
(1.14–1.88)
1.36
(1.05–1.75)
  III+IV 1.28
(0.99–1.65)
1.30
(1.01–1.68)
1.24
(0.96–1.60)
1.24
(0.96–1.61)
1.28
(0.99–1.66)
1.21
(0.94–1.57)
  V 1 1 1 1 1 1
Gest. age        
  22–32    32.53
(28.4–37.3)
   13.6
(11.5–16.1)
  33–36    3.05
(2.54–3.67)
   2.28
(1.89–2.76)
  37–41    1    1
  42+    1.70
(1.05–2.76)
   1.54
(0.95–2.509
Asphyxia yes     16.5
(14.6–18.7)
  7.21
(6.22–8.36)
SGA yes      3.66
(3.05–4.38)
1.39
(1.15–1.69)
  1. *Model is adjusted for year of birth and sex of the child, maternal age at the birth of the child and geographical residency.