. Author manuscript; available in PMC: 2010 Jan 1.

Published in final edited form as: J Pediatr. 2008 Aug 30;154(1):24–28.e1. doi: 10.1016/j.jpeds.2008.07.008

Table 2.

Population attributable risk (PAR) for antenatal and intrapartum risk factors among 2213 newborns ≥36weeks gestation at birth and seizures during the birth admission in California 1998-2002

Risk Factor	PAR (%)
Antenatal Characteristics
Maternal age ≥ 40	1.7
Nulliparous	15.9
Diabetes Mellitus
Gestational	2.7
Pre-existing	1.3
Intrapartum Characteristics
Delivery > 42 weeks	2.1
Prolonged second stage of labor	1.3
Catastrophic delivery	7.4
Maternal infection
Chorioamnionitis	5.4
Infection, no chorioamnionitis	1.2
Isolated fever	1.3