Table 1.
Characteristics of potential seizure events identified in health insurance claims data by age group.
| <7years (N =85) | 7–24 years (N = 40) | ≥25 years (N = 99) | Total (N =224) | |||||
|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | n | % | |
| ICD-9 diagnosis codea | ||||||||
| 345.xx only | 3 | 3.5 | 13 | 32.5 | 40 | 40.4 | 56 | 25.0 |
| 780.3x only | 73 | 85.9 | 18 | 45.0 | 45 | 45.5 | 136 | 60.7 |
| Both 345.xx and 780.3x | 9 | 10.6 | 9 | 22.5 | 14 | 14.1 | 32 | 14.3 |
| Setting of diagnosis | ||||||||
| Emergency Department | 63 | 74.1 | 19 | 47.5 | 15 | 15.2 | 97 | 43.3 |
| Inpatient | 22 | 25.9 | 21 | 52.5 | 84 | 84.8 | 127 | 56.7 |
| Sex | ||||||||
| Male | 55 | 64.7 | 22 | 55.0 | 38 | 38.4 | 115 | 51.3 |
| Female | 30 | 35.3 | 18 | 45.0 | 61 | 61.6 | 109 | 48.7 |
| Simultaneous vaccination received | ||||||||
| No | 39 | 45.9 | 37 | 92.5 | 88 | 88.9 | 164 | 73.2 |
| Yes | 46 | 54.1 | 3 | 7.5 | 11 | 11.1 | 60 | 26.8 |
a
Codes included all digits. ICD-9 345.xx = epilepsy, ICD-9 780.3x = convulsions.