The Development of Psychiatric Non-Suicidal Self-Injury Risk Assessment Scale

Shantou University Medical College

Status: Completed

Conditions: Non Suicidal Self Injury

Treatments: Other: Psychiatric Non-Suicidal Self-Injury Risk Assessment Scale

Study type: Observational

Funder types: Other

Identifiers

NCT06603389

202305

Details and patient eligibility

About

Non-suicidal self-injury (NSSI) is a growing global mental health challenge, distinct from suicidal behavior, with unique risk factors and mechanisms. Existing risk assessment tools do not focus on differentiating NSSI from suicidal self-harm or comprehensively evaluate risk and protective factors specific to NSSI. There is a lack of clinically applicable, validated scales dedicated to assessing NSSI risk, particularly in psychiatric populations. The present study is made to design the Psychiatric Non-Suicidal Self-Injury Risk Assessment Scale, a 39-item scale that evaluates static/dynamic risk factors and protective factors for NSSI in psychiatric patients.

Full description

The initial item pool was created through literature review, semi-structured interviews, and group discussions. Two rounds of the Delphi were employed with twenty experts. We analyzed items using critical ratio, correlation coefficient, factor analysis, and Cronbach's α coefficient. Exploratory factor analysis determined item weights, while reliability analyses evaluated internal consistency, test-retest, inter-observer and split-half methods. In the validity analyses, CVI, construct validity and criterion validity were used. ROC curve established the optimal diagnostic threshold and the risk stratification was performed.

Enrollment: 330 patients

Sex: All

Ages: 12 to 30 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Criteria for inclusion in the sample were individuals , diagnosed with various mental disorders according to the International Classification of Diseases, 10th Revision (ICD-10) diagnostic criteria;
2. Gender is not limited and aged is 12-30 years old;
3. The patient's clinical profile is complete and the medical history is detailed;
4. Informed consent from patients or guardians who signed a consent for.

Exclusion criteria

The patient's clinical profile was incomplete and her medical history was not detailed.

Trial design

330 participants in 1 patient group

Observation Group

Description:

Scales are used to get primary indicator and secondary indicators. The sample size should be set at 5 to 10 times the number of items, with a minimum total sample of 200. Additionally, an extra sample should be calculated to account for a potential 10-20% attrition rate, mitigating the impact of possible data loss. Given that the initial version scale consisted of 55 items, the minimum required sample size is 330.

Treatment:

Other: Psychiatric Non-Suicidal Self-Injury Risk Assessment Scale