Evidence map›Paper›PMID 39671739›Full record

ArticleEpilepsy & behavior : E&B2025

The association of polytherapy and psychiatric comorbidity in epilepsy.

Mercy A Odhiambo, Gilbert K Kaingu, Maria Mumbo, Karin Kipper, Josemir W Sander, Charles R J C Newton, Symon M Kariuki, EPInA investigators

Abstract read
In one paragraph

Article in Epilepsy & behavior : E&B, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Mercy A OdhiamboNeurosciences Unit, KEMRI Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya; The Open University, P.O. Box 197, Milton Keynes, MK7 6BJ, United Kingdom.
Gilbert K KainguNeurosciences Unit, KEMRI Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Maria MumboNeurosciences Unit, KEMRI Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya.
Karin KipperUCL Queen Square Institute of Neurology, London WC1N 3BG and Chalfont Centre for Epilepsy, Chalfont St Peter, SL9 0RJ, United Kingdom.
Josemir W SanderUCL Queen Square Institute of Neurology, London WC1N 3BG and Chalfont Centre for Epilepsy, Chalfont St Peter, SL9 0RJ, United Kingdom; Department of Neurology, West China Hospital, Sichuan University, Chengdu 610041, China.
Charles R J C NewtonNeurosciences Unit, KEMRI Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya; Department of Public Health, School of Human and Health Sciences, Pwani University, P.O Box 195-80108, Kilifi, Kenya; Department of Psychiatry, University of Oxford, Oxford, United Kingdom.
Symon M KariukiNeurosciences Unit, KEMRI Wellcome Trust Research Programme, P.O. Box 230-80108, Kilifi, Kenya; Department of Public Health, School of Human and Health Sciences, Pwani University, P.O Box 195-80108, Kilifi, Kenya; Department of Psychiatry, University of Oxford, Oxford, United Kingdom; African Population and Health Research Centre, Nairobi, Kenya. Electronic address: skariuki@kemri-wellcome.org.
EPInA investigators

Funding

Department of Health NIHR200134
6 · The paper itself

Abstract

purposeManaging epilepsy may require using more than one anti-seizure medication (ASM). While combination therapy may help, risks, including psychiatric problems, are not fully explored in Africa. We examined the relationship between polytherapy and psychiatric comorbidities among attendees of an epilepsy community clinic.

methodsWe prospectively assessed individuals attending an outpatient clinic in Kilifi, Kenya, for patterns of ASM prescribing (mono- or polytherapy) and reviewed psychiatric diagnoses. We used the Psychosis Screening Questionnaire and the Patient Health Questionnaire Version 9 to assess for psychosis and depression, and the Child Behavior Checklist to assess for emotional and behavioural problems. We conducted a cross-sectional logistic regression analysis to determine factors associated with polytherapy and examine the impact of polytherapy and specific medication on psychiatric comorbidities.

resultsOf 3,016 attendees, most were on older ASM (99.7 %), with about a third (32.9 %) on polytherapy. The most commonly co-administered drugs were phenobarbital and carbamazepine (13.0 %). Children were less likely to be on multiple medications than adults, and there was no difference between the sexes. Polytherapy was associated with focal to bilateralised seizures (aOR 1.2 [95 % confidence interval:1.0-1.4]) and frequent seizures (aOR = 2.1 [1.5-2.9]). Combining drugs increased the likelihood of any psychiatric problems (aOR = 1.3 [1.0-1.8]), with polytherapy associated with depression (aOR = 2.9 [1.0-8.4]) and psychosis (aOR = 1.9 (1.0-3.6)).

conclusionPolytherapy, especially with older drugs, is associated with psychiatric comorbidities in this population. Resorting to polytherapy needs to be carefully considered. Prioritizing research into the long-term effects of ASM on psychiatric comorbidities is crucial for improving mental health outcomes in epilepsy, particularly in low-income settings.

Indexed as

AnticonvulsantsEpilepsyMental DisordersAdolescentAdultChildChild, PreschoolComorbidityCross-Sectional StudiesDrug Therapy, CombinationFemaleHumansKenyaMaleMiddle AgedProspective StudiesAnticonvulsantsAfricaAnti-seizure medicationsCommunity epilepsy clinicMental health problemsPolytherapy

Identifiers

PMID39671739
PMCPMC7617250

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.