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Accepted for/Published in: JMIR Mental Health

Date Submitted: Jul 24, 2025
Open Peer Review Period: Jul 26, 2025 - Sep 20, 2025
Date Accepted: Mar 9, 2026
(closed for review but you can still tweet)

The final, peer-reviewed published version of this preprint can be found here:

Prevalence of Cognitive Distortion Markers in a Suicide Prevention Chat Service: Mixed Methods Study

ten Thij M, Mérelle S, Gilissen R, Bollen J

Prevalence of Cognitive Distortion Markers in a Suicide Prevention Chat Service: Mixed Methods Study

JMIR Ment Health 2026;13:e81213

DOI: 10.2196/81213

PMID: 42048667

Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.

Prevalence of cognitive distortion markers in a suicide prevention chat service

  • Marijn ten Thij; 
  • Saskia Mérelle; 
  • Renske Gilissen; 
  • Johan Bollen

ABSTRACT

Background:

Suicide helplines increasingly employ chat services to aid those in urgent need, but the wording and structure of text-driven exchanges may affect their effectiveness.

Objective:

: Given the association of cognitive distortions with depression and anxiety, here we investigated their prevalence in the language of individuals seeking help from the Dutch 113 suicide help-line.

Methods:

We observed the prevalence of cognitive distortions for both help-seekers and counselors in a large volume of chat sessions (N=71,148) of the Dutch 113 suicide chat help-line using natural language processing. The results were compared to two large collections of on-line text data from Dutch social media and web content.

Results:

We found that nearly all types of cognitive distortions are more prevalent in the language of help-seekers compared to the control group of helpline counselors. Distortions of the Personalizing, Emotional Reasoning, and Mental Filtering types were respectively 20.22, 7.87, and 4.53 times more prevalent among help seekers, revealing a distinct pattern of thought and language among individuals affected by suicidality.

Conclusions:

Our results raise the prospect of improving the effectiveness of online therapeutical interventions that target cognitive distortions, through lexical analysis that detects the cognitive and lexical markers of suicidality.


 Citation

Please cite as:

ten Thij M, Mérelle S, Gilissen R, Bollen J

Prevalence of Cognitive Distortion Markers in a Suicide Prevention Chat Service: Mixed Methods Study

JMIR Ment Health 2026;13:e81213

DOI: 10.2196/81213

PMID: 42048667

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