Table 2. Proportion of subjects with multifocal epilepsy not discovered after a specific number of seizures based on a Kaplan-Meier analysis.

Number of seizures	Total cohort	Multifocal interictals	Multifocal imaging	No risk factors
3	0.19 (0.11–0.28)	0.29 (0.15–0.43)	0.15 (0.10–0.33)	0.11 (0.01–0.22)
5	0.10 (0.00–0.20)	0.11 (0.00–0.27)	0.05 (0.00–0.25)	0.08 (0.00–0.20)
10	0.05 (0.00–0.15)	0.00 (0.00–0.17)	0.00 (0.00–0.21)	0.08 (0.00–0.20)
15	0.00 (0.00–0.13)	0.00 (0.00–0.17)	0.00 (0.00–0.21)	0.00 (0.00–0.19)

95% Confidence intervals are in parenthesis.