Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis
Objectives: Non-suicidal self-injury (NSSI) is the intentional and deliberate damage to an individual's own body tissue without the intent to suicide. Individuals who have higher self-reported levels of experiential avoidance are more likely to report a history of NSSI. The current study system...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
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2023
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| Online Access: | http://purl.org/au-research/grants/nhmrc/1173043 http://hdl.handle.net/20.500.11937/93199 |
| _version_ | 1848765709803323392 |
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| author | Haywood, Sophie B. Hasking, Penelope Boyes, Mark |
| author_facet | Haywood, Sophie B. Hasking, Penelope Boyes, Mark |
| author_sort | Haywood, Sophie B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Objectives: Non-suicidal self-injury (NSSI) is the intentional and deliberate damage to an individual's own body tissue without the intent to suicide. Individuals who have higher self-reported levels of experiential avoidance are more likely to report a history of NSSI. The current study systematically reviewed the literature and meta-analysed studies assessing associations between experiential avoidance and self-injury. Method: An extensive review was conducted of several databases (including ProQuest, Joanna Briggs, Web of Science, PsychArticles, PubMed, Scopus, and Ovid). Nineteen articles (two dissertations) met the inclusion criteria for the systematic review and 14 were analysed in a Robust Bayesian Meta-analysis. This review was registered through PROSPERO (CRD42020198041). Results: There was a small to medium, pooled effect size (d = 0.48, 95 % Credibility Interval 0.00–0.85). There was strong evidence for this effect size (Bayes Factor = 12.16), although there was considerable heterogeneity between studies (τ =0.68, 95 % CI [0.44, 0.1.05]). The analysis testing whether these findings may be due to publication bias was inconclusive (Bayes Factor = 2.45). Limitations: The majority of studies included were cross-sectional, in English, and most studies were of university students. While some studies reported on recency/frequency of NSSI there was not enough data to conduct meta-analysis. Conclusion: These results suggest there is a robust association between history of NSSI and experiential avoidance. However, as most studies operationalise avoidance as a unidimensional construct, it is not clear which aspects of avoidance differentiate individuals with and without a history of NSSI. |
| first_indexed | 2025-11-14T11:39:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-93199 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | eng |
| last_indexed | 2025-11-14T11:39:34Z |
| publishDate | 2023 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-931992023-10-04T01:14:36Z Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis Haywood, Sophie B. Hasking, Penelope Boyes, Mark Experiential avoidance Meta-analysis NSSI Self-injury Shared variance Humans Bayes Theorem Self-Injurious Behavior Self Report Suicide Bibliometrics Suicidal Ideation Humans Bayes Theorem Self-Injurious Behavior Suicide Bibliometrics Self Report Suicidal Ideation Objectives: Non-suicidal self-injury (NSSI) is the intentional and deliberate damage to an individual's own body tissue without the intent to suicide. Individuals who have higher self-reported levels of experiential avoidance are more likely to report a history of NSSI. The current study systematically reviewed the literature and meta-analysed studies assessing associations between experiential avoidance and self-injury. Method: An extensive review was conducted of several databases (including ProQuest, Joanna Briggs, Web of Science, PsychArticles, PubMed, Scopus, and Ovid). Nineteen articles (two dissertations) met the inclusion criteria for the systematic review and 14 were analysed in a Robust Bayesian Meta-analysis. This review was registered through PROSPERO (CRD42020198041). Results: There was a small to medium, pooled effect size (d = 0.48, 95 % Credibility Interval 0.00–0.85). There was strong evidence for this effect size (Bayes Factor = 12.16), although there was considerable heterogeneity between studies (τ =0.68, 95 % CI [0.44, 0.1.05]). The analysis testing whether these findings may be due to publication bias was inconclusive (Bayes Factor = 2.45). Limitations: The majority of studies included were cross-sectional, in English, and most studies were of university students. While some studies reported on recency/frequency of NSSI there was not enough data to conduct meta-analysis. Conclusion: These results suggest there is a robust association between history of NSSI and experiential avoidance. However, as most studies operationalise avoidance as a unidimensional construct, it is not clear which aspects of avoidance differentiate individuals with and without a history of NSSI. 2023 Journal Article http://hdl.handle.net/20.500.11937/93199 10.1016/j.jad.2023.01.027 eng http://purl.org/au-research/grants/nhmrc/1173043 http://creativecommons.org/licenses/by-nc/4.0/ fulltext |
| spellingShingle | Experiential avoidance Meta-analysis NSSI Self-injury Shared variance Humans Bayes Theorem Self-Injurious Behavior Self Report Suicide Bibliometrics Suicidal Ideation Humans Bayes Theorem Self-Injurious Behavior Suicide Bibliometrics Self Report Suicidal Ideation Haywood, Sophie B. Hasking, Penelope Boyes, Mark Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis |
| title | Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis |
| title_full | Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis |
| title_fullStr | Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis |
| title_full_unstemmed | Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis |
| title_short | Associations between non-suicidal self-injury and experiential avoidance: A systematic review and Robust Bayesian Meta-analysis |
| title_sort | associations between non-suicidal self-injury and experiential avoidance: a systematic review and robust bayesian meta-analysis |
| topic | Experiential avoidance Meta-analysis NSSI Self-injury Shared variance Humans Bayes Theorem Self-Injurious Behavior Self Report Suicide Bibliometrics Suicidal Ideation Humans Bayes Theorem Self-Injurious Behavior Suicide Bibliometrics Self Report Suicidal Ideation |
| url | http://purl.org/au-research/grants/nhmrc/1173043 http://hdl.handle.net/20.500.11937/93199 |