TABLE 2

Chart Verification of Electronically Identified Postvaccination Seizures in the Emergency Department and Hospital

All Reviewed Charts (N = 451), n (%)aMMRV (N = 183), n (%)MMR + Varicella (N = 268), n (%)
Acute seizure diagnosed424 (94)172 (94)252 (94)
Not an acute seizure8 (3)3 (2)5 (2)
No evidence of seizure event/insufficient information19 (4)8 (4)11 (4)
Febrile seizure diagnosed392 (87)160 (87)232 (87)
  • a Does not include 40 cases in which either the charts or the visit of interest were missing.