# Analysis of the mediating effect of invasive ruminative contemplation on the relationship between social support and non-suicidal self-injury behavior in depressed patients

## TL;DR

This study finds that intrusive rumination partly explains how social support affects non-suicidal self-injury in depressed patients.

## Contribution

The study identifies a mediating role of intrusive rumination in the relationship between social support and NSSI behavior in depression.

## Key findings

- Intrusive rumination mediates 27.40% of the relationship between social support and NSSI behavior.
- NSSI behavior is negatively correlated with social support and positively correlated with intrusive rumination.
- Regulating intrusive rumination may help reduce NSSI behavior in depressed patients.

## Abstract

To explore the mediating mechanism of intrusive rumination between social support and non-suicidal self-injury (NSSI) behavior in patients with depression.

Patients with depression admitted to our hospital from September 2023 to February 2024 were selected as the study subjects. A questionnaire survey was conducted using the General Information Questionnaire, Intrusive Rumination Scale, Perceived Social Support Scale, and Ottawa Self-Injury Inventory (OSI). Pearson correlation analysis and structural equation modeling (SEM) were used to test the mediating effect.

The scores for intrusive rumination, total social support, and NSSI behavior in 120 depressed patients were (15.71 ± 2.13), (47.85 ± 4.69), and (16.35 ± 2.65), respectively. NSSI behavior was negatively correlated with the total social support score and its three dimensions (P< 0.05), and positively correlated with the total intrusive rumination score (P< 0.05). Intrusive rumination showed a mediating effect of 27.40% between social support and NSSI behavior.

Social support can influence NSSI behavior in depressed patients by regulating intrusive rumination. It is crucial to emphasize the assessment of intrusive rumination in clinical practice to reduce the occurrence of NSSI behavior.