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Table 4 Crude and adjusted risk ratios for epilepsy hospitalization.

From: Apgar score and hospitalization for epilepsy in childhood: a registry-based cohort study

Analysis cohort N Risk ratio for 5-minute Apgar score<7 (95% CI)
   Crude Adjusted
All births (up to 12 years of follow-up) 131,853
(815 cases)
4.3
(2.0 to 6.3)
2.4
(1.5 to 3.8)*
All births with follow-up restricted to the first year of life 131,853
(217 cases)
8.4
(4.9 to 14.4)
4.9
(2.0 to 12.3)*
Births 1991–2001 (maternal smoking data complete) 62,799
(249 cases)
4.9
(2.8 to 8.7)
3.8
(1.9 to 7.5)#
Births 1995–2002 (maternal smoking and parental epilepsy data complete) 38,771
(125 cases)
8.1
(4.0 to 16.7)
5.2
(2.1 to 13.0)
  1. * Adjusted for birth weight, gestational age, mode of delivery, birth presentation, mother's age at delivery, and birth defects.
  2. # Adjusted for all of the above plus maternal smoking.
  3. Adjusted for all of the above plus parental epilepsy.