Evidence map›Paper›PMID 41561986›Full record

ArticleFrontiers in psychiatry2025

A case study on using quantile regression in psychiatry research.

Ravi G Shankar, Thennarasu Kandavel, Himani Kashyap, Y C Janardhan Reddy

Abstract read
In one paragraph

Article in Frontiers in psychiatry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Ravi G ShankarDepartment of Biostatistics, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India.
Thennarasu KandavelDepartment of Biostatistics, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India.
Himani KashyapDepartment of Clinical Psychology, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India.
Y C Janardhan ReddyDepartment of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Commonly used linear regression focuses only on the effect on the mean value of the dependent variable and may not be useful in situations where relationships across the distribution are of interest. This study aimed to appraise the utility of Quantile Regression (QR), a technique that can model any quantile value of the dependent variable. The primary aim of this study is to provide an overview of the QR method and its practical applications in psychiatric research. We demonstrated this with an exploratory analysis of the data on neuropsychological test performance among 119 subjects with obsessive-compulsive disorder (OCD). The varying effects of age, education, sex, antipsychotic use, and symptom severity between extreme quantiles were highlighted using simple and multiple QR models. While linear regression is easy to employ and interpret, QR is not only on par in performance but also more flexible in identifying a set of factors that may differ depending on the quantile of interest. QR analysis is a potent tool in applications where the effect of the independent variable varies depending on the values of the outcome variable. The results of this exploratory study suggest that the QR approach could potentially help explore inconsistent findings, generate future hypotheses, and/or provide possible interpretive frameworks for inconsistencies observed in neuropsychological research in OCD. As the QR offers a complete distributional analysis, it is valuable in providing new insights, especially in situations where the usual regression assumptions are violated or when interested the in extreme values of the outcome of interest.

Indexed as

linear regressionneuropsychological testsnon-normal distributionobsessive-compulsive disorderquantile regression

Identifiers

PMID41561986
PMCPMC12812866

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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.