Multivariable models
| Term | Odds ratio | 95% CI* | p Value |
|---|---|---|---|
| * Per 1-year increase in age (CI = confidence interval). | |||
| † After adjustment for the first four terms, the first four factors are presented without adjustment for family history of epilepsy. | |||
| A. Multivariable model for identifying factors associated with a history of any kind of febrile seizure | |||
| Febrile seizures, first-degree relative | 3.1 | 1.5–6.2 | 0.002 |
| Febrile seizures, second+-degree relative | 2.8 | 1.4–5.5 | 0.004 |
| Age at first unprovoked seizure | 0.9* | 0.8–1.0 | 0.007 |
| Childhood absence epilepsy | 0.2 | 0.1–0.7 | 0.01 |
| Epilepsy, first-degree relative† | 1.9 | 0.9–3.8 | 0.08 |
| B. Multivariable model for factors associated with a history of complex seizures | |||
| Age at first unprovoked seizures | 0.8* | 0.7–0.9 | 0.002 |
| Febrile seizures, first-degree relative | 4.2 | 1.7–10.4 | 0.002 |
| Absence seizures | 0.2 | 0.0–0.9 | 0.04 |
| C. Multivariable model for factors associated with a history of simple febrile seizures | |||
| Febrile seizures, first-degree relative | 3.0 | 1.2–7.3 | 0.01 |
| Febrile seizures, second+-degree relative | 2.9 | 1.2–6.7 | 0.02 |
| Epilepsy, first-degree relative | 2.6 | 1.1–6.1 | 0.02 |
| Childhood absence epilepsy | 0.1 | 0.0–1.0 | 0.05 |