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BACKGROUND: There is mixed evidence for whether psychosocial assessment following hospital presentation for self-harm reduces self-harm repetition. A possible reason is the differences in professional background of assessors (primarily psychiatrists and psychiatric nurses) due to variability in training and therapist style. METHODS: Using data from the Oxford Monitoring System for Self-harm, we analysed data on patients making their first emergency department (ED) presentation for self-harm between 2000 and 2014, followed-up until 2015. Using logistic regression, we estimated the probability of repeat self-harm within 12 months, comparing: (i) patients receiving psychosocial assessment versus none, adjusting for age, gender, self-harm method, past self-harm presentation, and general hospital admission; and (ii) patients assessed by a psychiatric nurse versus those assessed by a psychiatrist, adjusting for age, self-harm method, time and year of presentation. RESULTS: The 12,652 patients who had an index ED presentation for self-harm during the study period accounted for 24,450 presentations, in 17,303 (71%) of which a psychosocial assessment was conducted; in 9318 (54%) by a psychiatric nurse and in 7692 (45%) by a psychiatrist. We found a reduced probability of repeat self-harm presentation among patients receiving psychosocial assessment versus none (adjusted odds ratio [AOR] = 0.70; 95% CI = 0.65-0.75; p < 0.001), but no differences between patients assessed by a psychiatric nurse or a psychiatrist (AOR = 1.05; 95% CI = 0.98-1.13; p = 0.129). LIMITATIONS: Findings from a single hospital may not be generalizable to other settings. CONCLUSIONS: Short-term risk of repeat self-harm after psychosocial assessment for self-harm may not differ by the assessor's professional background.

Original publication




Journal article


J Affect Disord

Publication Date





158 - 165


Emergency department, Psychiatric nurse, Psychiatrist, Psychosocial assessment, Self-harm