CHARACTERISTICS AND DEVELOPMENT OF NONSUICIDAL SUPER SELF-INJURY AMONG BORDERLINE INPATIENTS
Bibliographic record
Abstract
BACKGROUND: Nonsuicidal self-injury (NSSI) is a key feature of borderline personality disorder (BPD), which is strongly associated with childhood traumatization. To the best of our knowledge, there has been a lack of studies investigating extensively the characteristics of borderline patients who engage in extremely high numbers of NSSI, and their features of NSSI, trauma history and psychopathology. The aim of this study is to identify groups of borderline inpatients on the basis of the lifetime number of NSSI, and to explore the characteristics of these groups regarding the onset, reasons and methods of NSSI, history of childhood traumatization, and severity of psychopathology. SUBJECTS AND METHODS: 80 psychiatric inpatients with BPD were included in the study, of whom 63 had a history of NSSI and 17 had not. The frequency and characteristics of NSSI were assessed by the Ottawa Self-Injury Inventory and the childhood traumatization were assessed by the Traumatic Antecedents Questionnaire and the Early Trauma Inventory. RESULTS: In this study among self-injuring borderline inpatients a super self-injuring group was identified, who engaged in extremely high numbers of NSSI (75.0±28.4 acts/lifetime). Compared to moderate self-injurers, super self-injurers began harming themselves at a younger age (p=0.008), used more severe forms of NSSI, and all of them reported an anti-dissociation function of NSSI. Adverse childhood experiences were more prevalent in the super self-injuring group. The strongest predictors of the lifetime number of NSSI were early sexual abuse (p<0.001), intrafamilial physical abuse (p<0.001), a higher cumulative trauma score (p=0.030) and a greater number of BPD criteria (p<0.001). CONCLUSIONS: Our results suggest that the frequency of NSSI in borderline inpatients can be seen as an indicator of clinically-relevant anamnestic data, namely, of the severity, complexity and onset of childhood traumatization, and of the severity of current borderline psychopathology.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".