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Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

970 questions in 77 reviews · Epilepsy

current versions
No studies 190 · 19.6%Ungraded 42 · 4.3%Very low 135 · 13.9%Low 289 · 29.8%Moderate 242 · 24.9%High 72 · 7.4%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Pregabalin vs placebo
Adverse effect: weight gain · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 4.35 [2.34, 8.11]8 studies · 2488 participantsLow
Pregabalin vs active comparators
50% or greater reduction in seizurefrequency · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 1.03 [0.85, 1.25]3 studies · 1286 participantsLow
Pregabalin vs active comparators
50% or greater reduction in seizure frequency ‐ best‐case analysis · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 1.6 [1.17, 2.19]3 studies · 1286 participantsVery low
Pregabalin vs active comparators
50% or greater reduction in seizure frequency ‐ worst‐case analysis · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 0.67 [0.62, 0.74]3 studies · 1286 participantsModerate
Pregabalin vs active comparators
Seizure freedom · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 0.59 [0.37, 0.95]2 studies · 802 participantsVery low
Pregabalin vs active comparators
Treatment withdrawal for any reason · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 0.93 [0.76, 1.13]3 studies · 1286 participantsLow
Pregabalin vs active comparators
Treatment withdrawal for adverse events · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
1.04 [0.73, 1.48]3 studies · 1286 participantsLow
Pregabalin vs placebo
50% or greater reduction in seizure frequency ‐ best‐case analysis · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 2.91 [1.92, 4.42]9 studies · 2663 participantsVery low
Pregabalin vs active comparators
Adverse effect: ataxia · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
1.72 [0.54, 5.55]1 study · 293 participantsLow
Pregabalin vs active comparators
Adverse effect: dizziness · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
1.64 [0.85, 3.16]3 studies · 1286 participantsLow
Pregabalin vs active comparators
Adverse effect: fatigue · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
1.72 [0.77, 3.83]1 study · 293 participantsLow
Pregabalin vs active comparators
Adverse effect: headache · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
0.83 [0.41, 1.65]3 studies · 1286 participantsVery low
Pregabalin vs active comparators
Adverse effect: nausea · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
0.2 [0.04, 1.01]1 study · 509 participantsVery low
Pregabalin vs active comparators
Adverse effect: somnolence · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
1.16 [0.88, 1.53]3 studies · 1286 participantsLow
Pregabalin vs active comparators
Adverse effect: weight gain · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
2.87 [0.94, 8.75]3 studies · 1286 participantsLow
Pregabalin vs placebo
50% or greater reduction in seizure frequency ‐ worst‐case analysis · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 1.1 [0.92, 1.31]9 studies · 2663 participantsVery low
Pregabalin vs placebo
Seizure freedom · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
3.94 [1.5, 10.37]4 studies · 1125 participantsModerate
Pregabalin vs placebo
Treatment withdrawal for any reason · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 1.33 [1.1, 1.6]9 studies · 2663 participantsModerate
Pregabalin vs placebo
Treatment withdrawal due to adverse effects · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 2.6 [1.86, 3.64]9 studies · 2663 participantsModerate
Pregabalin vs placebo
Adverse effect: ataxia · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 3.9 [2.05, 7.42]6 studies · 1868 participantsLow
Pregabalin vs placebo
Adverse effect: dizziness · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 3.15 [2.23, 4.44]7 studies · 2193 participantsLow
Pregabalin vs placebo
Adverse effect: fatigue · drug‐resistant focal epilepsy
Pregabalin add‐on for drug‐resistant focal epilepsy (2022) · Cochrane
RR 1.35 [0.94, 1.93]8 studies · 2448 participantsLow
Care delivery and self‐management strategies vs usual care
Number of seizures at 12 months · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
no estimate extracted1 study · 167 participantsModerate
Care delivery and self‐management strategies vs usual care
Seizure severity (frequency and duration of seizures) at 3 months · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
OR 1.78 [0.98, 3.26]1 study · 214 participantsLow
Care delivery and self‐management strategies vs usual care
Seizure control rate at 12 months · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
OR 2.57 [1.01, 6.53]1 study · 120 participantsLow
Care delivery and self‐management strategies vs usual care
Seizure cure rate at 12 months · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
OR 2.25 [1.08, 4.68]1 study · 120 participantsLow
Care delivery and self‐management strategies vs usual care
Drug adherence (MMAS‐8) at 3 months · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
OR 3.96 [2.03, 7.76]2 studies · 274 participantsModerate
Care delivery and self‐management strategies vs usual care
Epilepsy Knowledge Test for Children (EKTC) at 3 months · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
no estimate extracted1 study · 92 participantsModerate
Care delivery and self‐management strategies vs usual care
Seizure Self‐Efficacy Scale for Children (SSES‐C) at 3 months  · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
no estimate extracted2 studies · 168 participantsLow
Care delivery and self‐management strategies vs usual care
Self‐perception of epilepsy on quality of life (PedsQL) at 3 months · children/adolescents with epilepsy and/or their parents
Care delivery and self‐management strategies for children with epilepsy (2022) · Cochrane
no estimate extracted1 study · 76 participantsLow
Add‐on felbamate vs placebo
50% or greater reduction in seizure frequency · people with drug‐resistant focal epilepsy
Felbamate add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
no estimate extracted1 study · 83 participantsVery low
Add‐on felbamate vs placebo
Absolute or percentage reduction in seizure frequency · people with drug‐resistant focal epilepsy
Felbamate add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
no estimate extracted3 studies · 172 participantsVery low
Add‐on felbamate vs placebo
Treatment withdrawal · people with drug‐resistant focal epilepsy
Felbamate add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
no estimate extracted4 studies · 236 participantsVery low
Add‐on felbamate vs placebo
Adverse effects · people with drug‐resistant focal epilepsy
Felbamate add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
no estimate extracted4 studies · 236 participantsVery low
Add‐on felbamate vs placebo
Quality of life · people with drug‐resistant focal epilepsy
Felbamate add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
no estimate extracted1 study · 64 participantsVery low
Add‐on stiripentol vs add‐on placebo
≥ 50% reduction in seizure frequency · people with drug‐resistant focal epilepsy
Stiripentol add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
RR 1.51 [0.81, 2.82]1 study · 32 participantsLow
Add‐on stiripentol vs add‐on placebo
Seizure freedom · people with drug‐resistant focal epilepsy
Stiripentol add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
RR 1.18 [0.31, 4.43]1 study · 32 participantsLow
Add‐on stiripentol vs add‐on placebo
≥ 1 adverse effects · people with drug‐resistant focal epilepsy
Stiripentol add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
RR 2.65 [1.08, 6.47]1 study · 32 participantsLow
Add‐on stiripentol vs add‐on placebo
Neurological adverse effects · people with drug‐resistant focal epilepsy
Stiripentol add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
RR 2.65 [0.88, 8.01]1 study · 32 participantsLow
Add‐on stiripentol vs add‐on placebo
Gastrointestinal adverse effects · people with drug‐resistant focal epilepsy
Stiripentol add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
no estimate extracted1 study · 32 participantsUngraded
Add‐on stiripentol vs add‐on placebo
Dropouts · people with drug‐resistant focal epilepsy
Stiripentol add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
RR 0.66 [0.3, 1.47]1 study · 32 participantsLow
Add‐on stiripentol vs add‐on placebo
Quality of life · people with drug‐resistant focal epilepsy
Stiripentol add‐on therapy for drug‐resistant focal epilepsy (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Any reason · adults and children with focal seizures
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extracted4 studies · 520 participantsHigh
Intervention NR
Comparison (reference treatment) · adults and children with focal seizures
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Carbamazepine · adults and children with focal seizures
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extracted4 studies · 525 participantsHigh
Intervention NR
Comparison (reference treatment) · adults and children with focal seizures
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Lamotrigine · adults and children with focal seizures
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extracted2 studies · 907 participantsHigh
Intervention NR
Comparison (reference treatment) · adults and children with generalised seizures*
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Sodium valproate · adults and children with generalised seizures*
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extracted4 studies · 412 participantsHigh
Intervention NR
Adverse events · adults and children with focal seizures
Antiepileptic drug monotherapy for epilepsy: a network meta‐analysis of individual participant data (2022) · Cochrane
no estimate extracted4 studies · 520 participantsHigh