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Table 3 Risk interval analysis among children with epilepsy and immunization events (N = 80)

From: Risk of seizures after immunization in children with epilepsy: a risk interval analysis

Vaccine type Healthcare encounters for seizure after immunization RRa
  Risk period Control period
  0–14 days 0–2 days 7–10 days 5–14 days 21–83 days (95% CI)
Any type 6 20 1.14 (0.46, 2.83)
Inactivated 1 20 0.95 (0.13, 7.06)
Live 0 0 10 -b
  1. RR, relative risk
  2. aIncluding age or calendar season in the model did not change the estimate of RR, therefore the unadjusted models are presented
  3. b Unable to estimate RR
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