Evidence map›Paper›PMID 31429218›Full record

ArticlePsychiatry investigation2019

Predicting Symptomatic and Functional Improvements over 1 Year in Patients with First-Episode Psychosis Using Resting-State Electroencephalography.

Rinvil Renaldi, Minah Kim, Tak Hyung Lee, Yoo Bin Kwak, Andi J Tanra, Jun Soo Kwon

Open access · diamondAbstract read
In one paragraph

Article in Psychiatry investigation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 33% of its field
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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
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  4. High-density EEG study in patients with schizophrenia treated with cariprazine.The international journal of neuropsychopharmacology · 2026
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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

6 authors at 3 institutions in 2 countries.

Rinvil RenaldiDepartment of Psychiatry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia.
Minah KimDepartment of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
Tak Hyung LeeDepartment of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea.
Yoo Bin KwakDepartment of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea.
Andi J TanraDepartment of Psychiatry, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia.
Jun Soo KwonDepartment of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea.
Seoul National University · KRHasanuddin University · IDSeoul National University Hospital · KR

Funding

Ministry of Science, ICT and Future PlanningNational Research Foundation of Korea 2016R1E1A1A02921618National Research Foundation of Korea 2017M3C7A1029610National Research Foundation of Korea 2019R1C1C1002457
6 · The paper itself

Abstract

objectiveAlthough early intervention from the beginning of a psychotic episode is essential for a better prognosis, biomarkers predictive of symptomatic and functional improvement in early psychotic disorders are lacking. This study aimed to investigate whether the spectral power of resting-state electroencephalography (EEG) can be used as a predictive marker of the 1-year prognosis in patients with first-episode psychosis (FEP).

methodsTwenty-four patients with FEP and matched healthy control (HC) subjects were examined with resting-state EEG at baseline. The symptomatic severity and functional status of FEP patients were assessed at baseline and reassessed after 1 year of usual treatment. Repeated measures analysis of variance was conducted to compare EEG spectral powers across the groups. Multiple regression analysis revealed EEG spectral powers predictive of symptomatic and functional improvement in FEP patients at the 1-year follow-up.

resultsDelta band power in the frontal and posterior regions was significantly higher in patients with FEP than in HCs. Higher delta band power in the posterior region predicted later improvement of positive symptoms and general functional status. Lower delta band power in the frontal region predicted improvement of negative symptoms and general functioning after 1 year.

conclusionThese results suggest that increased delta absolute power is observed from the beginning of psychotic disorders. Furthermore, decreased delta power in the frontal region and increased delta power in the posterior region might be used as a predictive marker of a better prognosis of FEP, which would aid early intervention in clinical practice.

Indexed as

First-episode psychosisPrognosis predictionQuantitative electroencephalography

Identifiers

PMID31429218
PMCPMC6761798
OpenAlexW2969348563

What OpenQuestion holds

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LicenceCC BY-NC
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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.