Text mining for identifying the nature of online questions about non-suicidal self-injury

The internet provides convenient access to information about non-suicidal self-injury (NSSI) owing to its accessibility and anonymity. This study aimed to explore the distribution of topics regarding NSSI posted on the internet and yearly trends in the derived topics using text mining. We searched f...

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Bibliographic Details
Published in:BMC public health 2022-05, Vol.22 (1), p.1041-1041, Article 1041
Main Authors: Kim, Myo-Sung, Yu, Jungok
Format: Article
Language:English
Subjects:
Access to information
Analysis
Communication
Data Mining
Demographic aspects
Dirichlet problem
Electronic discussion groups
Evaluation
Humans
Influence
Information dissemination
Injuries
Internet
Knowledge
Morphology
Non-suicidal self injury
Prejudice
Public health
Questions
Questions and answers
Risk Factors
Self destructive behavior
Self-Injurious Behavior - epidemiology
Self-injury
Social media
Social networks
Social research
Suicidal Ideation
Suicides & suicide attempts
Teenagers
Websites
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Summary:The internet provides convenient access to information about non-suicidal self-injury (NSSI) owing to its accessibility and anonymity. This study aimed to explore the distribution of topics regarding NSSI posted on the internet and yearly trends in the derived topics using text mining. We searched for the keyword "non-suicidal self-injury" (Ja-Hae in Korean) in the Naver Q&A using the statistical package R. We analyzed 7893 NSSI-related questions posted between 2009 and 2018. Text mining was performed using latent Dirichlet allocation (LDA) on the dataset to determine associations between phrases and thus identify common themes in posts about NSSI. In the LDA, we selected the following 10 most common topics: anger, family troubles, collecting information on NSSI, stress, concerns regarding NSSI scarring, ways to help a non-suicidal self-injurious friend, depression, medical advice, ways to perform or stop NSSI, and prejudices and thoughts regarding non-suicidal self-injurious people. This study provides valuable information on the nature of NSSI questions posted online. In future research, developing websites that provide NSSI information and support or guidance on effectively communicating with NSSI is necessary.
ISSN:1471-2458
1471-2458
DOI:10.1186/s12889-022-13480-7