Table 2

HRs for prognostic factors for time to 12-month and time to 24-month remission

Multivariable HR (95% CI)
Prognostic factorComparison12-month remission24-month remission
Febrile seizure historyAbsentNA1.00
Present1.36 (0.93 to 2.00)
First degree relative with epilepsyAbsent1.001.00
Present0.69 (0.54 to 0.89)0.78 (0.57 to 1.05)
Age (years)≤71.00NA
(8 to 13)1.03 (0.99 to 1.06)
(14 to 19)1.07 (0.98 to 1.18)
(20 to 27)1.12 (0.97 to 1.29)
(28 to 50)1.23 (0.94 to 1.61)
>501.45 (0.89 to 2.37)
Neurological insultAbsent1.001.00
Present0.67 (0.49 to 0.92)0.56 (0.37 to 0.84)
Total number of tonic-clonic seizures before randomisation01.001.00
10.93 (0.90 to 0.96)0.98 (0.97 to 0.99)
20.89 (0.84 to 0.93)0.96 (0.94 to 0.99)
3–40.85 (0.79 to 0.91)0.94 (0.90 to 0.98)
5–60.81 (0.74 to 0.89)0.91 (0.85 to 0.96)
7–100.78 (0.70 to 0.87)0.86 (0.78 to 0.95)
11–200.73 (0.64 to 0.84)0.76 (0.64 to 0.90)
>200.49 (0.35 to 0.67)0.06 (0.01 to 0.35)
Seizure typeGeneralised tonic-clonic seizures only1.001.00
Absence seizures0.98 (0.52 to 1.83)0.71 (0.50 to 0.99)
Myoclonic or absence seizures with tonic-clonic seizures0.56 (0.43 to 0.73)0.54 (0.39 to 0.75)
Unclassified tonic-clonic seizures0.82 (0.64 to 1.06)1.00 (0.74 to 1.35)
Other seizures0.81 (0.48 to 1.36)0.54 (0.31 to 0.94)
TreatmentValproate1.001.00
Lamotrigine0.78 (0.63 to 0.98)0.68 (0.52 to 0.89)
Topiramate0.85 (0.68 to 1.16)0.67 (0.51 to 0.88)